/**
 *   @FileName	a.cpp
 *   @Author	kanpurin
 *   @Created	2021.07.09 20:08:55
**/

#include "bits/stdc++.h" 
using namespace std; 
typedef long long ll;

int main() {
    ll n;cin >> n;
    for (ll i = 0; i*i*i <= n; i++) {
        if (i*i*i == n) {
            puts("Yes");
            return 0;
        }
    }
    puts("No");
    return 0;
}