87487188 has 24 divisors (see below), whose sum is σ = 204328320. Its totient is φ = 29135040.

The previous prime is 87487181. The next prime is 87487189. The reversal of 87487188 is 88178478.

It is a self number, because there is not a number n which added to its sum of digits gives 87487188.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87487181) 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, 13093 + ... + 18611.

It is an arithmetic number, because the mean of its divisors is an integer number (8513680).

Almost surely, 2^87487188 is an apocalyptic number.

It is an amenable number.

87487188 is an abundant number, since it is smaller than the sum of its proper divisors (116841132).

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

87487188 is a wasteful number, since it uses less digits than its factorization.

87487188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6847 (or 6845 counting only the distinct ones).

The product of its digits is 802816, while the sum is 51.

The square root of 87487188 is about 9353.4586116580. The cubic root of 87487188 is about 443.9303315735.

The spelling of 87487188 in words is "eighty-seven million, four hundred eighty-seven thousand, one hundred eighty-eight".