#include <bits/stdc++.h>
#define int long long
#define double long double
using namespace std;
const int MOD = 1000000007;
const int INF = 1000000000000;
using Graph = vector<vector<int>>;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)

signed main(){
  int N;
  cin >> N;

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