Exodus 12:37

And the children of Israel journeyed from Rameses, the neighborhood of the city or the district where they had been living in Egypt, to Succoth, on the edge of the wilderness toward the east, where the Suez Canal now passes through, about six hundred thousand on foot that were men, beside children, the Hebrew word including all of those that did not travel on foot, but on beasts of burden or in wagons. The entire number of the people may well have exceeded two million souls.