90588489 has 16 divisors (see below), whose sum is σ = 126822720. Its totient is φ = 57435840.

The previous prime is 90588481. The next prime is 90588497. The reversal of 90588489 is 98488509.

It is an interprime number because it is at equal distance from previous prime (90588481) and next prime (90588497).

It is not a de Polignac number, because 90588489 - 2³ = 90588481 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90588481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1942 + ... + 13599.

It is an arithmetic number, because the mean of its divisors is an integer number (7926420).

Almost surely, 2^90588489 is an apocalyptic number.

It is an amenable number.

90588489 is a deficient number, since it is larger than the sum of its proper divisors (36234231).

90588489 is a wasteful number, since it uses less digits than its factorization.

90588489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15640.

The product of its (nonzero) digits is 829440, while the sum is 51.

The square root of 90588489 is about 9517.7985374770. The cubic root of 90588489 is about 449.1151154155.

The spelling of 90588489 in words is "ninety million, five hundred eighty-eight thousand, four hundred eighty-nine".