Numbers 1:45-47

Young's Literal Translation

⁴⁵ And they are, all those numbered of the sons of Israel, by the house of their fathers, from a son of twenty years and upward, every one going out to the host in Israel,

⁴⁶ yea, all those numbered are six hundred thousand, and three thousand, and five hundred and fifty.

⁴⁷ And the Levites, for the tribe of their fathers, have not numbered themselves in their midst,