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

int main() {
    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;
}