86887816 has 32 divisors (see below), whose sum is σ = 173681280. Its totient is φ = 40608000.

The previous prime is 86887793. The next prime is 86887837. The reversal of 86887816 is 61878868.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18421 + ... + 22651.

It is an arithmetic number, because the mean of its divisors is an integer number (5427540).

Almost surely, 2^86887816 is an apocalyptic number.

It is an amenable number.

86887816 is a deficient number, since it is larger than the sum of its proper divisors (86793464).

86887816 is a wasteful number, since it uses less digits than its factorization.

86887816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4405 (or 4401 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 52.

The square root of 86887816 is about 9321.3634195862. The cubic root of 86887816 is about 442.9142232951.

The spelling of 86887816 in words is "eighty-six million, eight hundred eighty-seven thousand, eight hundred sixteen".