In several passages, the number of Israelites that left Egypt is in the range of 600,000 men. Adding in women and children, probably in the millions.
And the children of Israel journeyed from Rameses to Succoth, about six hundred thousand on foot [that were] men, beside children.
26 A bekah for every man, [that is], half a shekel, after the shekel of the sanctuary, for every one that went to be numbered, from twenty years old and upward, for six hundred thousand and three thousand and five hundred and fifty [men].
Even all they that were numbered were six hundred thousand and three thousand and five hundred and fifty.
These [are] those which were numbered of the children of Israel by the house of their fathers: all those that were numbered of the camps throughout their hosts [were] six hundred thousand and three thousand and five hundred and fifty.
These [were] the numbered of the children of Israel, six hundred thousand and a thousand seven hundred and thirty.