#include <iostream>

using namespace std;

int main() {
	long long n;
	cin >> n;
	int factorCount = 0;
	for (long long divisor = 2; divisor * divisor <= n; ++divisor) {
		while (n % divisor == 0) {
			n /= divisor;
			++factorCount;
		}
	}
	if (n >= 2) {
		++factorCount;
	}
	cout << ((factorCount >= 3) ? "YES" : "NO") << endl;
	return 0;
}