import java.util.Scanner;
public class No36 {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		System.out.println(check(sc.nextLong()) ? "YES" : "NO");
	}
	public static boolean check(Long n) {
		int count = 0;
		if (n < 29)
			return false;
		for (int i = 3; i * i <= n; i += 1) {
			if (n % i == 0)
				count++;
			if (count >= 3)
				return true;
		}
		return false;
	}
}