89988668 has 36 divisors (see below), whose sum is σ = 197833776. Its totient is φ = 35059200.

The previous prime is 89988659. The next prime is 89988671. The reversal of 89988668 is 86688998.

It is a happy number.

89988668 is a strobogrammatic number because it is the same when read upside-down.

It is a self number, because there is not a number n which added to its sum of digits gives 89988668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9893 + ... + 16668.

Almost surely, 2^89988668 is an apocalyptic number.

It is an amenable number.

89988668 is an abundant number, since it is smaller than the sum of its proper divisors (107845108).

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

89988668 is a wasteful number, since it uses less digits than its factorization.

89988668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26594 (or 26581 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 62.

The square root of 89988668 is about 9486.2357128631. The cubic root of 89988668 is about 448.1216652446.

The spelling of 89988668 in words is "eighty-nine million, nine hundred eighty-eight thousand, six hundred sixty-eight".