#include <iostream>

using namespace std;
typedef long long LL;

int main(){
    LL N;
    cin >> N;
    int cnt = 0;
    for(LL p = 2; p*p <= N; p++){
        while(N % p == 0){
            cnt += 1;
            N /= p;
            if(cnt >= 3) break;
        }
    }
    if(N > 1) cnt += 1;
    if(cnt >= 3){
        cout << "YES" << endl;
    }else{
        cout << "NO" << endl;
    }
    return 0;
}