using System;

using System.Collections.Generic;

using Newtonsoft.Json;

public class Program

{

    public static void Main()

    {

        string json="{ \"Number\" : 6 }";

​

        Account account = JsonConvert.DeserializeObject<Account>(json);

        Console.WriteLine(account.Number);

    }

}

public class Account

{

    public string Number { get; set; }

}

​