#include <bits/stdc++.h>
#define rep(i,n) for(ll (i)=0;(i)<(n);(i)++)
#define repi(i,a,b) for(ll (i)=(a);(i)<(b);(i)++)
#define SIZE_OF_ARRAY(array)    (sizeof(array)/sizeof(array[0]))
typedef long long ll;
using namespace std;
const ll mod = 1e9+7;

int main(){
  ios::sync_with_stdio(false);
  cin.tie(nullptr);

  ll n;
  cin >> n ;
  ll m = (n+1)/2;
  for( ll i = 2LL; i<=m ; i++){
    if(n%i==0){
      cout << "YES" << endl;
      return 0;
    }
  }
  cout << "NO" << endl;
  return 0;
  }