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

#define ll long long
#define rep(i, n) for (int i = 0; i < (n); i++)
#define P pair<int, int>

int main() {
  ll n;
  cin >> n;
  ll now = 1;
  while (now*now*now <= n) {
    if (now*now*now == n) {
      cout << "Yes" << endl;
      return 0;
    }
    now++;
  }
  cout << "No" << endl;


}