I once read an article by Penn Jillette explaining why, when asked to choose a number between 1 and 100, a surprising number of people will pick 37.
I found it especially interesting, because 37 is my favorite number to pick, although for none of the reasons outlined by Jilette. I have synesthesia, and 3 & 7 go better together than other pairs of numbers, for one thing, and there are other things about 37 that just makes it look and feel right-- 4 & 2 go well together, but I don’t like either of those numbers, and I like three a lot, while 7 is probably my very favorite. (On the whole, I like odd numbers better than even ones, and a great deal of it has to do with the colors they tend to be.)
Yes, I know that sounds strange, but it’s how synesthesia feels.