27198087 has 12 divisors (see below), whose sum is σ = 42185016. Its totient is φ = 15541680.

The previous prime is 27198043. The next prime is 27198107. The reversal of 27198087 is 78089172.

It is not a de Polignac number, because 27198087 - 2⁶ = 27198023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27198287) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92364 + ... + 92657.

It is an arithmetic number, because the mean of its divisors is an integer number (3515418).

Almost surely, 2^27198087 is an apocalyptic number.

27198087 is a deficient number, since it is larger than the sum of its proper divisors (14986929).

27198087 is a wasteful number, since it uses less digits than its factorization.

27198087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185038 (or 185031 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 42.

The square root of 27198087 is about 5215.1785204344. The cubic root of 27198087 is about 300.7318686645.

The spelling of 27198087 in words is "twenty-seven million, one hundred ninety-eight thousand, eighty-seven".