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 <= Math.sqrt(n); i++) {
			if (n % i == 0) {
				res++;
				if (n / i % i == 0) {
					res++;
					if (n / i / i % i == 0) {
						res++;
					}
				}
			}
		}
	}
}