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

#define int long long

typedef pair<int,int>pint;
typedef vector<int>vint;
typedef vector<pint>vpint;
#define endl '\n'
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define all(v) (v).begin(),(v).end()
#define rep(i,n) for(int i=0;i<(n);i++)
#define reps(i,f,n) for(int i=(f);i<(n);i++)
#define each(it,v) for(__typeof((v).begin()) it=(v).begin();it!=(v).end();it++)
template<class T,class U>void chmin(T &t,U f){if(t>f)t=f;}
template<class T,class U>void chmax(T &t,U f){if(t<f)t=f;}


signed main(){
    int N;cin>>N;
    int n=N,cnt=0;
    for(int i=2;i*i<=N;i++){
        while(n%i==0){
            n/=i;
            cnt++;
        }
    }
    if(n!=1)cnt++;
    if(cnt>=3)cout<<"YES"<<endl;
    else cout<<"NO"<<endl;
    return 0;
}