#include <iostream>
using namespace std;

int pf(unsigned long long x)
{
	int r = 1;
	for ( unsigned long long i = 2; i * i <= x; ) {
		if ( x % i == 0 ) {
			r++;
			x = x / i;
		}
		else {
			i++;
		}
	}
	return r;
}

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

	cout << (pf(n) >= 3 ? "YES" : "NO") << endl;

	return 0;
}