The antichrist will try to make everyone bear "the mark", but...?

I'm not saying 666 is not the mark of the beast and 777 is a bad number, but if the antichrist will claim to be God/Jesus Christ, wouldn't he try to convince people he's "777" and make people accept 777 as the mark or would he hate Jesus and 777 so bad that he gives himself away with 666? Why would he do that when everyone knows 666 is a bad number? (Or 616, or whatever number it is...)