How many Ancient Egyptian gods and goddesses were there?

Please don't give me a link. Just tell me an exact number but be sure to include your sources. Thank you!

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Answer:
Egyptian religion has over 700 gods and goddesses with a variety of beliefs depending on the time period of Egyptian history which is still being studied. Even the Egyptians recognized the difficulty of following the multitude of gods and goddesses as early as the Old Kingdom. They attempted to simplify the religion by organizing their gods in family groups of eight or nine. Evidence is very limited on Predynastic Egypt (before 3100 B.C.). Each community would worship it's own deity, or set of deities.
The history of Egypt is one of the most interesting subjects I have ever encounter, but of course, you may not feel the same.