exactly vs properly

exactly and properly both are adverbs.

Word	Noun	Adjective	Verb	Adverb
exactly	No	No	No	Yes
properly	No	No	No	Yes

As adverbs, exactly and properly are synonyms defined as:

Other synonyms of exactly include just, precisely.

exactly (adverb)	properly (adverb)
indicating exactness or preciseness	in the right manner; correctly; suitably
in a precise manner	in accordance with what is appropriate or suitable for the circumstances
just as it should be	indicating exactness or preciseness