object Main extends App {
  val sc = new java.util.Scanner(System.in)
  val n = sc.nextLong
  (1L to List(n, 1000000L).min).takeWhile(p => p * p * p <= n).find(p => p * p * p == n) match {
    case Some(_) => println("Yes")
    case None => println("No")
  }
}