#include <iostream>
#include <vector>
#include <cmath>

using namespace std;

const long long MAX_N = 100000000000000;
long long N;
vector<bool> nonprimes(10000001);

void get_nonprimes(int n){
  for (int i=2;i<=n;i++) {
    if (nonprimes[i] == 0) {
      for (int j=0;i*(j+2)<=n;j++) {
        nonprimes[i*(j+2)] = 1;
      }
    }
  }
}

int main(){
  string result = "NO";
  cin>>N; 
  get_nonprimes((int)sqrt(N));
  
  for (auto it=nonprimes.begin();it!=nonprimes.end();it++) {
    if (*it && N % distance(nonprimes.begin(), it) == 0) {
      result = "YES"; 
      break;
    }
  }
  cout<<result<<endl;
}