87258880 has 36 divisors (see below), whose sum is σ = 209015352. Its totient is φ = 34903040.

The previous prime is 87258877. The next prime is 87258907. The reversal of 87258880 is 8885278.

It is a super-2 number, since 2×87258880² = 15228224277708800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87258880.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32806 + ... + 35365.

It is an arithmetic number, because the mean of its divisors is an integer number (5805982).

Almost surely, 2^87258880 is an apocalyptic number.

87258880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

87258880 is an abundant number, since it is smaller than the sum of its proper divisors (121756472).

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

87258880 is an equidigital number, since it uses as much as digits as its factorization.

87258880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68192 (or 68178 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 46.

The square root of 87258880 is about 9341.2461695429. The cubic root of 87258880 is about 443.5438325500.

The spelling of 87258880 in words is "eighty-seven million, two hundred fifty-eight thousand, eight hundred eighty".