Nine is an Arabic numeral nine. They have a white colored body and slightly lighter limbs. They have soft fluffy fur that makes them look adorable. They wear black sunglasses shining with the colors of their skateboard they carry around; light blue, cream and yellow. He has an exaggerated 1999 or 2000s "cool" skater personality. Despite it being 2024 he uses Radical and Tubular. He acts like he's the coolest Algebralien -which what he is which is an alive number- of them all. 