27397898 has 16 divisors (see below), whose sum is σ = 45788544. Its totient is φ = 12188160.

The previous prime is 27397891. The next prime is 27397901. The reversal of 27397898 is 89879372.

It is not an unprimeable number, because it can be changed into a prime (27397891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12215 + ... + 14282.

It is an arithmetic number, because the mean of its divisors is an integer number (2861784).

Almost surely, 2^27397898 is an apocalyptic number.

27397898 is a deficient number, since it is larger than the sum of its proper divisors (18390646).

27397898 is a wasteful number, since it uses less digits than its factorization.

27397898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26557.

The product of its digits is 1524096, while the sum is 53.

The square root of 27397898 is about 5234.3001442409. The cubic root of 27397898 is about 301.4665157203.

The spelling of 27397898 in words is "twenty-seven million, three hundred ninety-seven thousand, eight hundred ninety-eight".