#pragma GCC optimize("Ofast", "unroll-loops")

#include <bits/stdc++.h>

using namespace std;

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