89387388 has 60 divisors (see below), whose sum is σ = 234788400. Its totient is φ = 29654208.

The previous prime is 89387383. The next prime is 89387399. The reversal of 89387388 is 88378398.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89387383) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 84688 + ... + 85736.

It is an arithmetic number, because the mean of its divisors is an integer number (3913140).

Almost surely, 2^89387388 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 89387388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117394200).

89387388 is an abundant number, since it is smaller than the sum of its proper divisors (145401012).

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

89387388 is a wasteful number, since it uses less digits than its factorization.

89387388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328 (or 1317 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 89387388 is about 9454.4903617276. The cubic root of 89387388 is about 447.1213579773.

The spelling of 89387388 in words is "eighty-nine million, three hundred eighty-seven thousand, three hundred eighty-eight".