#include<bits/stdc++.h>
using namespace std;
int main(){
    long long N;
    cin >> N;
    bool fl=false;
    for(long long i=1;i<=1000000;i++){
        if(i*i*i==N)fl=true; 
    }
    if(fl)cout << "Yes" << endl;
    else cout << "No" << endl;
    return 0;
}