import java.util.Scanner;

public class Main {

	@SuppressWarnings("resource")
	public static void main(String args[]) {
		Scanner scanner = new Scanner(System.in);
		long n=scanner.nextLong();
		num_prime(n);
		if(res>=3) {
			System.out.println("YES");
		}else {
			System.out.println("NO");
		}
	}
	static int res=0;
	private static void num_prime(long n) {
		for (int i = 2; i * i <= n; i++) {
			if (n % i == 0) {
				res++;
				num_prime(n/i);
				return;
			}
		}
	}
}