Superstitious Number 34

I don't really know why this number is such a superstition to me, but I see it everywhere. I am always seeing the numbers 3 and 4 pop up next to each other all the time in my day-to-day life, and I always have found it strange. Maybe it's my lucky or unlucky number (I don't believe in luck), but at the same time it feels weird to call it a coincidence because it's not like it is a popular number for many things since it's not a multiple of 5.