#include<bits/stdc++.h>
using namespace std;
using ll = long long;
#define rep(i,m,n) for(int i=m; i<n; ++i)
#define repl(i,m,n) for(ll i=m; i<n; ++i)

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

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

    return 0;
}