In this simple python program, we have to check for a Harshad number. It's a number python program.

To understand this example, you should have knowledge of the following Python programming topics:

**A Harshad number is a number in which the sum of the digits in that number must be a divisor of that number**. Which means the given number must be divisible by the sum of the digits of the number.

For example,

- take the number 54
- We have to split the number into digits like 5 and 4
- The sum of digits is 5+4 = 9
- The condition of Harshad number is 9 must be a divisor of 54 or 54 will be divisible by 9
- Here 54 % 9 is zero ie., it's completely divisible. The condition is true because the remainder is zero. So
**54**is a**Harshad number**

In this simple python program, we use a `while loop`

until the number is greater than zero. Then get the digit from the number using the **mod (%) **operator, and we add the digit to get the sum. Now divide the number by 10 to split the number and remove one digit. Then we again use the **Mod** operator to check the number is divisible by **sum** using the if condition statement in python. If its remainder is zero, then print its Harshad number.

**STEP 1:** Initialize a number with some predefined number.

**STEP 2:** Initialize the reminder and sum it to zero.

**STEP 3:** Copy the number to another variable to save its value.

**STEP 4:** Use a `while loop`

until the number is greater than zero.

**STEP 5:** Calculate the remainder using the **mod **operator, and we get the digits of the number.

**STEP 6:** Add the sum as a sum and reminder, and split the number by dividing the number by **10** to remove one digit from the number.

**STEP 7:** Using an `if`

condition, check the number mod sum is equal to zero.

**STEP 8:** If it is zero, print it's a Harshad number. `Else`

print, not Harshad, using the python programming language.

` ````
num = 54;
rem = sum = 0;
n = num;
while(num > 0):
rem = num
sum = sum + rem; # calculating the sum of digits of the number
num = num//10;
if(n%sum == 0):
print(str(n) + " is a harshad number");
else:
print(str(n) + " is not a harshad number");
```

54 is a harshad number