#include <bits/stdc++.h>

const static double	de_PI	= 3.14159265358979323846;
const static int	de_MOD	= 1000000007;
const static int	de_MAX	= 999999999;
const static int	de_MIN = -999999999;

bool Judge_PrimeNumber(const unsigned long long a) {

	if (a < 2) { return false; }
	if (a == 2) { return true; }
	if (a % 2 == 0) { return false; }

	for (int i = 3; i <= a / i; i += 2) {
		if (a%i == 0) {
			return false;
		}
	}
	return true;
}

int main(void) {

	//std::ifstream in("123.txt");	std::cin.rdbuf(in.rdbuf());

	unsigned long long N = 0;
	std::cin >> N;

	bool flg = false;
	for (unsigned long long i = 4; i < N / i; i++) {
		if (i % 2 == 1) {
			if (Judge_PrimeNumber(i)) {
				continue;
			}
		}
		if (N%i == 0) {
			flg = true;
			break;
		}
	}

	if (flg) {
		std::cout << "YES" << std::endl;
	}
	else {
		std::cout << "NO" << std::endl;
	}

}