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

long long n;
bool f;

int main()
{
	cin >> n;

	if (n == 1)
		f = 1;
	else {
		long long l = 1, r = n;

		while (r > l + 1) {
			long long m = (l + r) / 2;
			bool g;

			if (m > n / m)
				g = 0;
			else if (m * m > n / m)
				g = 0;
			else
				g = 1;

			if (g)
				l = m;
			else
				r = m;
		}

		if (l * l * l == n)
			f = 1;
	}
	
	if(f)
		cout << "Yes" << endl;
	else
		cout << "No" << endl;
}