89889 has 12 divisors (see below), whose sum is σ = 128016. Its totient is φ = 56088.

The previous prime is 89867. The next prime is 89891. The reversal of 89889 is 98898.

It is not a de Polignac number, because 89889 - 2⁸ = 89633 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 89889.

It is not an unprimeable number, because it can be changed into a prime (89809) 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, 1042 + ... + 1124.

It is an arithmetic number, because the mean of its divisors is an integer number (10668).

2⁸⁹⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

89889 is a deficient number, since it is larger than the sum of its proper divisors (38127).

89889 is a wasteful number, since it uses less digits than its factorization.

89889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 105 counting only the distinct ones).

The product of its digits is 41472, while the sum is 42.

The square root of 89889 is about 299.8149429231. The cubic root of 89889 is about 44.7956163334.

Subtracting 89889 from its reverse (98898), we obtain a palindrome (9009).

The spelling of 89889 in words is "eighty-nine thousand, eight hundred eighty-nine".