1087589888 has 160 divisors (see below), whose sum is σ = 2769465600. Its totient is φ = 422983680.

The previous prime is 1087589873. The next prime is 1087589941. The reversal of 1087589888 is 8889857801.

It is a self number, because there is not a number n which added to its sum of digits gives 1087589888.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1931495 + ... + 1932057.

It is an arithmetic number, because the mean of its divisors is an integer number (17309160).

Almost surely, 2^1087589888 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 1087589888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1384732800).

1087589888 is an abundant number, since it is smaller than the sum of its proper divisors (1681875712).

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

1087589888 is an frugal number, since it uses more digits than its factorization.

1087589888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613 (or 583 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 62.

The square root of 1087589888 is about 32978.6277458599. The cubic root of 1087589888 is about 1028.3833904349.

The spelling of 1087589888 in words is "one billion, eighty-seven million, five hundred eighty-nine thousand, eight hundred eighty-eight".