#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using Graph = vector<vector<int>>;
int main() {
    long long N; cin >> N;
    for(long long i = 1; i <= 1000000; i++) {
        long long X = i * i * i;
        if(X == N) {
            cout << "Yes" << endl;
            return 0;
        }
    }
    cout << "No" << endl;
}