87158616 has 16 divisors (see below), whose sum is σ = 217896600. Its totient is φ = 29052864.

The previous prime is 87158597. The next prime is 87158627. The reversal of 87158616 is 61685178.

It is a super-3 number, since 3×87158616³ (a number of 25 digits) contains 333 as substring.

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, 1815781 + ... + 1815828.

Almost surely, 2^87158616 is an apocalyptic number.

It is an amenable number.

87158616 is an abundant number, since it is smaller than the sum of its proper divisors (130737984).

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

87158616 is a wasteful number, since it uses less digits than its factorization.

87158616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3631618 (or 3631614 counting only the distinct ones).

The product of its digits is 80640, while the sum is 42.

The square root of 87158616 is about 9335.8778912323. The cubic root of 87158616 is about 443.3738841432.

The spelling of 87158616 in words is "eighty-seven million, one hundred fifty-eight thousand, six hundred sixteen".