That’s supposed to represent the amount of calories you’d burn if all you did was lie still and breathe (right?) so you could shoot for around that number if you’re active and still be on a small deficit, on workout days theoretically you’d want to eat a little more than that, and you’d still be under by a bit depending on what you did for a workout.
It’s pretty silly to think that number is exact though, so focus on a ball park figure.
Some app for my phone says mine are around 17-1800 which is kinda hard to believe (I thought it’d be higher), but it takes into account the weight I want to be which is about 10lbs less than I currently am. I’m dabbling in some tracking right now but it’s so boring I can’t stick with it, I can’t even put in a whole meal without getting frustrated lol “uh, I had some onions but I’ll be goddamned if I’m going to type that and try to figure out how much I ate, they’re effin’ onions for cryin’ out loud!” yeah tracking bores me to death.