My body is white with such a nice sheen, if you jump in me, i will get you nice and clean. What am i?

Question

I am a 9 letter word.
My first 4 letter is a part of a body.
My last 3 letter is a number.
If you lost me, it would be your worst nightmare .
Who I Am?

Answer 1

It’s a Bathtub

Answer 2

You are a bathtub full of bubbles