C Program to check a number is Armstrong number or not

This a C program to check whether a given number is armstrong or not .
Generally a number is said to be an armstrong number if the cubes of the digits is equal to its original number .

For Example : 153 is an armstrong number as 1³ + 5³ + 3³ = 153  whereas 234 is not an armstrong number as 2³+ 3³+ 4³ is not equal to 234.



PROGRAM :

#include <stdio.h>
#include <stdlib.h>
int main()
{
    int number,num,sum=0,remainder;
    printf("Enter any number :\t");
    scanf("%d",&number);
    num=number;
    while(num)
    {
        remainder=num%10;
        sum=sum+remainder*remainder*remainder;
        num=num/10;
    }
    if(number == sum)
        printf("%d is an Armstrong number",number);
    else
        printf("%d is an not an Armstrong number",number);
    return 0;

}

OUTPUT :

C - Armstrong number or not