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

int main()
{
  int64_t N;
  cin >> N;
  
  for(int64_t i = 1; i <= 1000000; i++)
  {
    if(i * i * i == N)
    {
      cout << "Yes" << endl;
      return 0;
    }
  }
  
  cout << "No"<< endl;
  return 0;
}