87867685 has 16 divisors (see below), whose sum is σ = 111432960. Its totient is φ = 66329280.

The previous prime is 87867673. The next prime is 87867707. The reversal of 87867685 is 58676878.

It is not a de Polignac number, because 87867685 - 2¹³ = 87859493 is a prime.

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, 24039 + ... + 27451.

It is an arithmetic number, because the mean of its divisors is an integer number (6964560).

Almost surely, 2^87867685 is an apocalyptic number.

It is an amenable number.

87867685 is a deficient number, since it is larger than the sum of its proper divisors (23565275).

87867685 is a wasteful number, since it uses less digits than its factorization.

87867685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3708.

The product of its digits is 4515840, while the sum is 55.

The square root of 87867685 is about 9373.7764534898. The cubic root of 87867685 is about 444.5729775585.

It can be divided in two parts, 8786 and 7685, that added together give a triangular number (16471 = T₁₈₁).

The spelling of 87867685 in words is "eighty-seven million, eight hundred sixty-seven thousand, six hundred eighty-five".