27722 is a member of OEIS A036689: product of a prime and the previous number, here 167 and 166. The sequence can be generated as follows:

INPUT

L=[]

for p in prime_range(200):

  L.append(p*(p-1))

  if p*(p-1)==27722:

    print(p,p-1)

print(L)

OUTPUT

167 166

[2, 6, 20, 42, 110, 156, 272, 342, 506, 812, 930, 1332, 1640, 1806, 2162, 2756, 3422, 3660, 4422, 4970, 5256, 6162, 6806, 7832, 9312, 10100, 10506, 11342, 11772, 12656, 16002, 17030, 18632, 19182, 22052, 22650, 24492, 26406, 27722, 29756, 31862, 32580, 36290, 37056, 38612, 39402]

27722 is a nialpdrome in base 15 (8322).

27722 is a sphenic number.

27722 is an inconsummate number since there does not exist a number n which divided by its sum of digits gives 27722.

27722 is a pronic number: 167 * 166

27722 is a sphenic number whose sum of prime factors is a palindrome, here 252. See Bespoken for Sequences entry.

27722 is a junction number because it is equal to n+sod(n) for n = 27694 and 27703.

27722 can be rendered as a digit equation as follows:

2 - 7 / 7 = 2 / 2