#include <bits/stdc++.h>
#define rep(i,n) for(int i = 0; i < (n); i++)
using namespace std;
typedef long long ll;

int main(){
    cin.tie(0);
    ios::sync_with_stdio(0);
    
    ll N; cin >> N;
    ll cnt = 0;
    ll p = -1;
    for(ll i = 2; i * i <= N; i++) {
        while(N % i == 0) {
            cnt++, N /= i;
            if(p == -1) p = i;
            else if(p != i) { cout << "YES" << endl; return 0; }
        }
        if(cnt >= 3){ cout << "YES" << endl; return 0; }
    }

    cout << "NO" << endl;
    return 0;
}