27198 has 12 divisors (see below), whose sum is σ = 58968. Its totient is φ = 9060.

The previous prime is 27197. The next prime is 27211. The reversal of 27198 is 89172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27191) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 738 + ... + 773.

It is an arithmetic number, because the mean of its divisors is an integer number (4914).

2²⁷¹⁹⁸ is an apocalyptic number.

27198 is an abundant number, since it is smaller than the sum of its proper divisors (31770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27198 is a wasteful number, since it uses less digits than its factorization.

27198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1519 (or 1516 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 27198 is about 164.9181615226. The cubic root of 27198 is about 30.0731548008.

Adding to 27198 its sum of digits (27), we get a square (27225 = 165²).

It can be divided in two parts, 27 and 198, that added together give a square (225 = 15²).

The spelling of 27198 in words is "twenty-seven thousand, one hundred ninety-eight".