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

using ll = long long;

int main(void) {
	ll N;
	cin >> N;
	
	int cnt = 0;
	for(ll i = 2; i * i <= N; ++i) while(N % i == 0) N /= i, ++cnt;
	if(N != 1) ++cnt;
	
	cout << (cnt >= 3 ? "YES" : "NO") << endl;
	return 0;
}