89988885 has 48 divisors (see below), whose sum is σ = 184429440. Its totient is φ = 39715200.

The previous prime is 89988881. The next prime is 89988887. The reversal of 89988885 is 58888998.

It is not a de Polignac number, because 89988885 - 2² = 89988881 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89988881) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4210 + ... + 14060.

It is an arithmetic number, because the mean of its divisors is an integer number (3842280).

Almost surely, 2^89988885 is an apocalyptic number.

It is an amenable number.

89988885 is an abundant number, since it is smaller than the sum of its proper divisors (94440555).

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

89988885 is a wasteful number, since it uses less digits than its factorization.

89988885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9898 (or 9895 counting only the distinct ones).

The product of its digits is 13271040, while the sum is 63.

The square root of 89988885 is about 9486.2471504805. The cubic root of 89988885 is about 448.1220254467.

The spelling of 89988885 in words is "eighty-nine million, nine hundred eighty-eight thousand, eight hundred eighty-five".