import java.io.*;
import java.util.*;

class Main
{
    public static void main(String args[])throws Exception
    {
        BufferedReader bu=new BufferedReader(new InputStreamReader(System.in));
        StringBuilder sb=new StringBuilder();
        long n=Long.parseLong(bu.readLine());
        int i; boolean ans=false;
        for(i=1;i<=1000000;i++)
        if(1l*i*i*i==n) ans=true;
        if(ans) sb.append("Yes\n");
        else sb.append("No\n");
        System.out.print(sb);
    }
}