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