89864523 has 24 divisors (see below), whose sum is σ = 148762848. Its totient is φ = 51207552.

The previous prime is 89864507. The next prime is 89864531. The reversal of 89864523 is 32546898.

It is not a de Polignac number, because 89864523 - 2⁴ = 89864507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89864503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23215 + ... + 26807.

It is an arithmetic number, because the mean of its divisors is an integer number (6198452).

Almost surely, 2^89864523 is an apocalyptic number.

89864523 is a deficient number, since it is larger than the sum of its proper divisors (58898325).

89864523 is a wasteful number, since it uses less digits than its factorization.

89864523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4003 (or 4000 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 89864523 is about 9479.6900265779. The cubic root of 89864523 is about 447.9154997809.

The spelling of 89864523 in words is "eighty-nine million, eight hundred sixty-four thousand, five hundred twenty-three".