#include <bits/stdc++.h>
using namespace std;
#if __has_include(<atcoder/all>)
#include <atcoder/all>
using namespace atcoder;
using mint = modint1000000007;
#endif
using ll = long long;
using ld = long double;
const ll INF = 1ll<<60;
const ld EPS = 1.0/1e9;
#define endl "\n"
#define rep(i,a,b) for(int i=a;i<b;i++)
#define rrep(i,a,b) for(int i=a;i>=b;i--)
#define fore(i,a) for(auto &i:a)
#define all(x) (x).begin(),(x).end()
#define del(x) sort(all(x)); x.erase(unique(all(x)),x.end());

int main(){
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  ll n; cin >> n;
  ll cnt=0;
  vector<ll>y;
  for(ll i=2;i*i<=n;i++){
    if(n%i==0){
      y.push_back(i);
      if(i*i!=n) y.push_back(n/i);
    }
  }
  sort(all(y));
  rep(i,0,y.size()) rep(j,i,y.size()){
    ll x=*lower_bound(all(y),y[i]*y[j]);
    if(x==y[i]*y[j]){
      cout << "YES" << endl;
      return 0;
    }
  }
  cout << "NO" << endl;
}