The number 47: Jack's user account's reference number is 024785.
When Jack accesses Lauren's e-mail, the subject of one of the messages is "FW: Photos for Alias Ep. #315".
Sloane: Ah, you have such a beautiful smile, Sydney. I miss it.
Sydney: If you're executed, I'll be a witness. I'll smile then.
Vaughn: If I need it, can I crash on your couch?
Weiss: Yeah, you just have to wipe off the cheese nips.
Sark: Have you been made?
Lauren: Of course not. If he knew I was Covenant he would arrest me, not break up with me.