#include <bits/stdc++.h>
#define FOR(i,a,b) for(int i = (a); i < (b); ++i)
#define REP(i,n) FOR(i,0,n)
#define SZ(n) (int)(n).size()
#define ALL(n) (n).begin(), (n).end()
#define MOD 1000003
#define INF 100000000
using namespace std;
typedef long long LL;
typedef vector<int> VI;
typedef pair<int, int> PI;


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