#include "bits/stdc++.h"
using namespace std;

int main() {
	long long N;
	vector<long long> V;
	cin >> N;
	for (long long i = 2; i * i <= N; i++) {
		if (N % i == 0) {
			V.push_back(i);
			N /= i;
			i--;
		}
	}
	V.push_back(N);
	if (V.size() >= 3) cout << "YES" << endl;
	else cout << "NO" << endl;
}