import java.util.Scanner;

public class No44 {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		long N = sc.nextLong();
		long n = N;
		long soinsuu = 0;
		long i = 2;
		while(n != 1) {
			if(n % i == 0) {
				n /= i;
				soinsuu++;
			}else if(i == 2) {
				i++;
			}else {
				i += 2;
			}
			if(i * i > N) {
				break;
			}
		}
		
		if(soinsuu >= 3) {
			System.out.println("YES");
		}else {
			System.out.println("NO");
		}
	}
}