87089180 has 24 divisors (see below), whose sum is σ = 183360240. Its totient is φ = 34745600.

The previous prime is 87089173. The next prime is 87089183. The reversal of 87089180 is 8198078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87089183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2591 + ... + 13449.

It is an arithmetic number, because the mean of its divisors is an integer number (7640010).

Almost surely, 2^87089180 is an apocalyptic number.

It is an amenable number.

87089180 is an abundant number, since it is smaller than the sum of its proper divisors (96271060).

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

87089180 is a wasteful number, since it uses less digits than its factorization.

87089180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11269 (or 11267 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 41.

The square root of 87089180 is about 9332.1583784246. The cubic root of 87089180 is about 443.2561130823.

The spelling of 87089180 in words is "eighty-seven million, eighty-nine thousand, one hundred eighty".