#include <iostream>
using namespace std;
int main(){
	long long N;
	cin >> N;
	int cnt = 0;
	for (int i = 2; (long long) i * i <= N; i++){
		while (N % i == 0){
			N /= i;
			cnt++;
		}
	}
	if (N > 1){
		cnt++;
	}
	if (cnt >= 3){
		cout << "YES" << endl;
	} else {
		cout << "NO" << endl;
	}
}