27898542 has 72 divisors (see below), whose sum is σ = 71918496. Its totient is φ = 7789824.

The previous prime is 27898537. The next prime is 27898553. The reversal of 27898542 is 24589872.

27898542 is a `hidden beast` number, since 27 + 89 + 8 + 542 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 41118 + ... + 41790.

It is an arithmetic number, because the mean of its divisors is an integer number (998868).

Almost surely, 2^27898542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27898542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35959248).

27898542 is an abundant number, since it is smaller than the sum of its proper divisors (44019954).

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

27898542 is a wasteful number, since it uses less digits than its factorization.

27898542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742 (or 732 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 27898542 is about 5281.9070419688. The cubic root of 27898542 is about 303.2916839594.

The spelling of 27898542 in words is "twenty-seven million, eight hundred ninety-eight thousand, five hundred forty-two".