import java.util.Scanner;

public class Main {
	public static void main(String[] args) throws Exception {
		Scanner sc = new Scanner(System.in);
		long n = sc.nextLong();
		sc.close();

		for (long i = 1; i <= 1000000; i++) {
			if (i * i * i == n) {
				System.out.println("Yes");
				return;
			}
		}
		System.out.println("No");
	}
}