89868 has 12 divisors (see below), whose sum is σ = 209720. Its totient is φ = 29952.

The previous prime is 89867. The next prime is 89891. The reversal of 89868 is 86898.

It is a tau number, because it is divible by the number of its divisors (12).

89868 is a strobogrammatic number because it is the same when read upside-down.

It is not an unprimeable number, because it can be changed into a prime (89867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3733 + ... + 3756.

2⁸⁹⁸⁶⁸ is an apocalyptic number.

It is an amenable number.

89868 is an abundant number, since it is smaller than the sum of its proper divisors (119852).

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 (104860).

89868 is a wasteful number, since it uses less digits than its factorization.

89868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7496 (or 7494 counting only the distinct ones).

The product of its digits is 27648, while the sum is 39.

The square root of 89868 is about 299.7799192741. The cubic root of 89868 is about 44.7921276559.

The spelling of 89868 in words is "eighty-nine thousand, eight hundred sixty-eight".