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

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

    int b = 0;
    for (ll i = 1; i * i * i <= n; i++) {
        if (i * i * i == n) b = 1;
    }
    cout << (b ? "Yes" : "No") << endl;

    return 0;
}