#include <bits/stdc++.h>
using namespace std;
int main(){
  long long N;
  cin >> N;
  bool ok = false;
  for (int i = 1; i <= 1000000; i++){
    if (N == (long long) i * i * i){
      ok = true;
    }
  }
  if (ok){
    cout << "Yes" << endl;
  } else {
    cout << "No" << endl;
  }
}