require 'prime'

class Calc0036
  def initialize(args)
    args = args.map { |l| l.chomp.split(/\s+/) }
    @n = args.shift.first.to_i
    @prime = Prime.instance
  end

  def calc
    return false if @n == 1
    divs = @prime.prime_division(@n).map(&:last)
    divs.inject(:+) >= 3
  end

  def run
    calc ? 'YES' : 'NO'
  end
end

puts Calc0036.new(STDIN.readlines).run if __FILE__ == $0