#include <stdio.h>
#include <bits/stdc++.h>
#include <atcoder/all>
using namespace atcoder;
using mint = modint998244353;
using namespace std;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf 1000000

int main(){
	
	long long n;
	cin>>n;
	
	int c = 0;
	for(long long i=2;i*i<=n;i++){
		while(n%i==0){
			n/=i;
			c++;
		}
	}
	if(n!=1)c++;
	cout<<(c>=3?"YES":"NO")<<endl;
	
	return 0;
}