#include <bits/stdc++.h>
#define rep(i,n) for(int i = 0; i < (n); ++i)
#define srep(i,s,t) for (int i = s; i < t; ++i)
#define drep(i,n) for(int i = (n)-1; i >= 0; --i)
using namespace std;
typedef long long int ll;
typedef pair<int,int> P;
#define yn {puts("YES");}else{puts("NO");}
#define MAX_N 200005

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

    ll i = 2;
    int cnt = 0;
    while(i < 10010010){
        while(n % i == 0){
            cnt++;
            n /= i;
        }
        i++;
    }

    if(n > 1)cnt++;

    if(cnt>=3)yn;

    return 0;
}