import java.util.Scanner;

public class program8
{
	public static void main(String[] args)
	{
	    int num=0,rem=0,temp=0,sumOfDigits=0;
		Scanner sc = new Scanner(System.in);
		System.out.print("Enter a number: ");
		num = sc.nextInt();
		sumOfDigits = 0;
		temp = num;
		while (temp > 0)
		{
			rem = temp % 10;
			temp = temp / 10;
			sumOfDigits = sumOfDigits + rem;
		}
		if (num % sumOfDigits == 0)
		{
			System.out.println(num+" is a Niven number");
		}
		else
		{
			System.out.println(num +" is Not a niven number");
		}
	}
}