#include <algorithm>
#include <cstdio>
#include <cstdlib>
#include <cctype>
#include <cmath>
#include <iostream>
#include <queue>
#include <list>
#include <map>
#include <numeric>
#include <set>
#include <sstream>
#include <string>
#include <vector>
using namespace std;
#define REP(i,a,n) for(int i=(a); i<(int)(n); i++)
#define rep(i,n) REP(i,0,n)
#define FOR(it,c) for(__typeof((c).begin()) it=(c).begin(); it!=(c).end(); ++it)
#define ALLOF(c) (c).begin(), (c).end()
typedef long long ll;

vector<ll> factorize(ll x){
  vector<ll> ret;
  ll d, q;
  while(x>=4 && x%2==0){ret.push_back(2); x/=2;}
  d = 3; q = x/d;
  while(q>=d){
    if(x%d==0){ ret.push_back(d); x=q; }else{ d+=2; }
    q=x/d;
  }
  ret.push_back(x);
  return ret;
}

int main(){
  ll N;
  cin >> N;

  vector<ll> ret = factorize(N);
  if(ret.size()>2){
    cout << "YES" << endl;
  }else{
    cout << "NO" << endl;
  }
  
  return 0;
}