This is typical puppy play. This is how puppies play. They don't have fingers or hands so how else is he to play? He's going to do this for a while. Several months to a year or more. He needs a lot of exercise. Play with him a lot. Let him chase a ball. Wear him out.
You can walk off and ignore him for 3 or 4 minutes when he bites you and soon he will learn what got him ignored.