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

using ll = long long;

int main() {
    ll n;
    cin >> n;
    bool Flag = false;
    for (ll i = 1; i <= 1e6; i++) {
        if (n == i * i * i) Flag = true;
    }

    if (Flag) cout << "Yes" << endl;
    else cout << "No" << endl;
}