package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"
	"strings"
)

func main() {
	var scan *bufio.Scanner
	scan = bufio.NewScanner(os.Stdin)
	scan.Scan()
	stringInput := scan.Text()
	number, err := strconv.Atoi(strings.TrimSpace(stringInput))
	if err != nil {
		panic(err)
	}
	var divisorList []int
	for i := 1; i <= number; i++ {
		if number%i == 0 {
			divisorList = append(divisorList, i)
		}
	}
	sum := Sum(divisorList)
	if sum == number*2 {
		fmt.Print("Yes")
	} else {
		fmt.Print("No")
	}
}

func Sum(numList []int) int {
	var sum int
	for _, value := range numList {
		sum += value
	}
	return sum
}