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

int N;

signed main(){
    cin>>N;
    for(int i = 0; i <= 1e6; i++){
    	if(i*i*i == N){
    		cout << "Yes" << "\n";
    		return 0;
    	}
    }
    cout << "No" << "\n";
}