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

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