#include <bits/stdc++.h>
using namespace std;

int n;
void bs(int x) {
	int l = 0, r = 10;
	while(l + 1 < r) {
		int mid = (l + r) / 2;
		if(pow(mid, 3) < n)
			l = mid;
		else if(pow(mid, 3) == n) {
			cout << "Yes";
			return;
		}
		else
			r = mid;
	}
	cout << "No";
}

int main() {
	cin >> n;
	bs(n);
	return 0;
}