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

#define rep(i,n) for(int i=0;i<(int)(n);++i)
#define rrep(i,m) for(int i=(int)(m)-1;i>=0;--i)
#define debug(x) cout << #x << "=" << (x) << endl;

template<class T> inline bool chmin(T& a,T b){if(a>b){a=b;return true;}return false;}
template<class T> inline bool chmax(T& a,T b){if(a<b){a=b;return true;}return false;}
template<typename T> void fail(T v){cout << v << endl;exit(0);}
//template end

void solve(){
  ll N;
  cin>>N;int res=0;
  for(ll i=2;i*i<N;i++)
    if(N%i==0){
      while(N%i==0){N/=i;res++;}
    }
  if(res>2)cout<<"YES"<<endl;
  else cout<<"NO"<<endl;
}

int main(){
  cin.tie(0);
  ios::sync_with_stdio(false);
  solve();
  return 0;
}