87685616 has 20 divisors (see below), whose sum is σ = 170168424. Its totient is φ = 43771200.

The previous prime is 87685613. The next prime is 87685621. The reversal of 87685616 is 61658678.

Its product of digits (483840) is a multiple of the sum of its prime factors (8960).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87685613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6431 + ... + 14721.

Almost surely, 2^87685616 is an apocalyptic number.

It is an amenable number.

87685616 is a deficient number, since it is larger than the sum of its proper divisors (82482808).

87685616 is a wasteful number, since it uses less digits than its factorization.

87685616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8960 (or 8954 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The square root of 87685616 is about 9364.0598033118. The cubic root of 87685616 is about 444.2657014205.

The spelling of 87685616 in words is "eighty-seven million, six hundred eighty-five thousand, six hundred sixteen".