27285089 has 12 divisors (see below), whose sum is σ = 30089556. Its totient is φ = 24586848.

The previous prime is 27285079. The next prime is 27285109. The reversal of 27285089 is 98058272.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11444689 + 15840400 = 3383^2 + 3980^2 .

It is not a de Polignac number, because 27285089 - 2²⁰ = 26236513 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27285019) 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, 137012 + ... + 137210.

It is an arithmetic number, because the mean of its divisors is an integer number (2507463).

Almost surely, 2^27285089 is an apocalyptic number.

It is an amenable number.

27285089 is a deficient number, since it is larger than the sum of its proper divisors (2804467).

27285089 is an equidigital number, since it uses as much as digits as its factorization.

27285089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 27285089 is about 5223.5130898659. The cubic root of 27285089 is about 301.0521905212.

The spelling of 27285089 in words is "twenty-seven million, two hundred eighty-five thousand, eighty-nine".