Python Program To Find Digits Sum Of An Integer

def sumOfDigits(N):
    sum=0
    while(N>0):
        D=int(N%10)
        sum=sum+D
        N=int(N/10)
    return sum

n =int(input("Enter the number: "))
print("Sum Of Digits: ",sumOfDigits(n))

Enter the number: 89
Sum Of Digits:  17