1393 double 9
I would typically encourage you to get them in pairs though, as it helps them feel less lonely when you inevitably have to leave the dog home alone when you have to go out and do human stuff. A male and female pair is a little more ideal, but a male and another male would work fine as they are a lot less prone to same sex aggression versus a female and female pairing. Luckily my two get along with each other very well... but there certainly was some struggles in the first year. Especially over food, even though they are both definitely adequately fed.
An independent type breed might be good home alone though, but someone with more experience than me would have to speak to that.