#include <iostream>
#include <vector>
#include <algorithm>
#include <functional>
#include <queue>
#include <map>
#include <cmath>
#include <iomanip>

using namespace std;

const long long MOD = (long long)(1e9) + 7;

int main() {

  //cout << fixed << setprecision(15);

  long long n;
  cin >> n;
  for (long long i = 1; i <= 1000000; i++) {
    if (i * i * i == n) {
      cout << "Yes" << endl;
      return 0;
    }
  }
  cout << "No" << endl;
  return 0;
}