27356 is a member of OEIS A046411: composite numbers the concatenation of whose prime factors is a prime, here 227977. See blog post Thinning the Ranks.

27356 is an admirable, congruent and untouchable number.

27356 is a primitive abundant number since it is smaller than the sum of its proper divisors, none of which is abundant.

27356 is a Zumkeller and pseudoperfect number.

27356 stabilises to a block and a blinker after about 78 generations under Conway's Game of Life rules.