import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        long n = sc.nextLong();
        HashMap<Long, Integer> map = new HashMap<>();
        for (long i = 2; i <= Math.sqrt(n); i++) {
            while (n % i == 0) {
                if (map.containsKey(i)) {
                    map.put(i, map.get(i) + 1);
                } else {
                    map.put(i, 1);
                }
                n /= i;
            }
        }
        if (n != 1) {
            if (map.containsKey(n)) {
                map.put(n, map.get(n) + 1);
            } else {
                map.put(n, 1);
            }
        }
        boolean flag = false;
        int sum = 0;
        for (int x : map.values()) {
            sum += x;
        }
        if (sum >= 3) {
            System.out.println("YES");
        } else {
            System.out.println("NO");
        }
    }
}