#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
int main(){
    ll n;cin >> n;
    ll num=n;
    int k=0;
    for(ll i=2;i*i<=n;i++){
        while(num%i==0){
            num/=i;
            k++;
        }
    }
    if(num!=1){
        k++;
    }
    if(k>=3){
        cout << "YES" << endl;
    }
    else{
        cout << "NO" << endl;
    }
}