using System;

class Program
{
    public static void Main()
    {
        long n = long.Parse(Console.ReadLine());

        int cnt = 0;
        for (long i = 2; i * i <= n; i++)
        {
            while (n % i == 0)
            {
                n /= i;
                cnt++;
            }
        }

        if (n != 1) cnt++;

        if (cnt >= 3) Console.WriteLine("YES");
        else Console.WriteLine("NO");
    }
}