27584 is a member of OEIS A046411: composite numbers the concatenation of whose prime factors is a prime, here 222222431. See Bespoken for Sequences entry.

27584 is an inconsummate number.

27584 has an aliquot sequence that does not terminate after 101 steps.

27584 can be rendered as a digit equation as follows:

2 + 7 - 5 = 8 - 4