#include<cstdio>


typedef long long ll;


int solve(ll x)
{
	ll i;
	int c=0;

	for(;x%2==0;x/=2)
	{
		c++;
		if(c>=3) return 1;
	}

	for(i=3;i*i<=x;i+=2)
	{
		for(;x%i==0;x/=i)
		{
			c++;
			if(c>=3) return 1;
		}
	}
	if(x>1) c++;

	return c>=3;
}


int main(void)
{
	ll n;

	while(scanf("%lld", &n)==1)
	{
		printf("%s\n", solve(n)?"YES":"NO");
	}

	return 0;
}