#include <bits/stdc++.h>
#define rep(i, l, r) for (int i = (l); i < (r); i++)
using namespace std;

typedef long long ll;

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;
}