#include <bits/stdc++.h>
using namespace std;
int main() {
    long long N; cin >> N;
    int i = 1;
    int j = 1;
    while ((j = i * i * i) <= N) {
        if (j == N) {
            cout << "Yes" << endl;
            exit(0);
        }
        i++;
    }
    cout << "No" << endl;
}