Exodus 12:37-38
Exodus 12:37-38 AMP
Now the Israelites journeyed from Rameses to Succoth, about six hundred thousand men on foot, besides [the women and] the children. A mixed multitude [of non-Israelites from foreign nations] also went with them, along with both flocks and herds, a very large number of livestock. [Num 11:4; Deut 29:11]