How much is a small number from 650 to as big as 820?

Question

I'm as small as an ant, as big as a whale. I'll
approach like a breeze, but can come like a gale.
By some I get hit, but all have shown fear. I'll
dance to the music, though I can't hear. Of names
I have many, of names I have one. I'm as slow as
a snail, but from me you can't run. What am I?

Answer 1

735

(650+820)/2

Comments

My more two have questions.

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Thanks for you help