#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
ll n;
int main(void){
    cin>>n;
    for(ll i=1LL;i<=1000000;i++){
        if(i*i*i==n){
            cout<<"Yes"<<endl;
            return 0;
        }
    }
    cout<<"No"<<endl;
}