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

long long n;

int main(){
    cin >> n;
    double x = cbrt(n);
    bool ans = false;
    
    for(int i = 1; i*i*i <= n; i++){
        if(i*i*i == n) ans = true;
        else ans = false;
    }

    if(ans) cout << "Yes" << endl;
    else cout << "No" << endl;
}