89808 has 20 divisors (see below), whose sum is σ = 232128. Its totient is φ = 29920.

The previous prime is 89797. The next prime is 89809. The reversal of 89808 is 80898.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89809) by changing a digit.

89808 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 888 + ... + 983.

2⁸⁹⁸⁰⁸ is an apocalyptic number.

It is an amenable number.

89808 is an abundant number, since it is smaller than the sum of its proper divisors (142320).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116064).

89808 is a wasteful number, since it uses less digits than its factorization.

89808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1882 (or 1876 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 89808 is about 299.6798291510. The cubic root of 89808 is about 44.7821570101.

The spelling of 89808 in words is "eighty-nine thousand, eight hundred eight".