The number Eighty Nine is of course the number preceding Ninety by one, and proceeding Eighty by nine. This has some implications regarding the use of the number. The fact that it's close to ninety means that estimation regarding ninety may sometimes use the number eighty nine, while the proximity from eighty regards it as a distant cousin than a brother.
However, no one ever uses the number eighty nine. It's too much of a freak. Ninety is used plenty as it is not only a multiple of ten by the closest one to a hundred. Why the arse is this? Eighty nine is only 1.111% away from ninety, yet is used not even close to as much?
In summary, numerology sucks.