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

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