#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i = 0; i < (int)n; i++)
using ll = long long;
constexpr ll MAX = 1e6;

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