89921888 has 48 divisors (see below), whose sum is σ = 203323680. Its totient is φ = 38347776.

The previous prime is 89921879. The next prime is 89921893. The reversal of 89921888 is 88812998.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50420 + ... + 52172.

It is an arithmetic number, because the mean of its divisors is an integer number (4235910).

Almost surely, 2^89921888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89921888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101661840).

89921888 is an abundant number, since it is smaller than the sum of its proper divisors (113401792).

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

89921888 is a wasteful number, since it uses less digits than its factorization.

89921888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1999 (or 1991 counting only the distinct ones).

The product of its digits is 663552, while the sum is 53.

The square root of 89921888 is about 9482.7152229728. The cubic root of 89921888 is about 448.0107884307.

It can be divided in two parts, 89921 and 888, that added together give a palindrome (90809).

The spelling of 89921888 in words is "eighty-nine million, nine hundred twenty-one thousand, eight hundred eighty-eight".