#include<iostream>
#include<string>
#include<math.h>
using namespace std;

int sosu(int N){
	int A;
	int J = 0;
	for (int i1 = 2; i1 < N; i1++){
		A = (N / i1)*i1;
		if (A == N){
			J = 1;
			break;
		}
	}
	return J;

}

int main(){
	int n;
	int a;
	cin >> n;
	int judge = 0;
	for (int i = 2; i < n; i++){
		if (sosu(i) == 0){
			continue;
		}
		a = (n / i) * i;
		if (a == n){
			judge = 1;
			break;
		}
	}
	if (judge == 1){
		cout << "YES" << endl;
	}
	else{
		cout << "NO" << endl;
	}

	return 0;
}