86840886 has 16 divisors (see below), whose sum is σ = 189471168. Its totient is φ = 26315400.

The previous prime is 86840869. The next prime is 86840891. The reversal of 86840886 is 68804868.

It is a congruent number.

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, 657820 + ... + 657951.

It is an arithmetic number, because the mean of its divisors is an integer number (11841948).

Almost surely, 2^86840886 is an apocalyptic number.

86840886 is an abundant number, since it is smaller than the sum of its proper divisors (102630282).

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

86840886 is a wasteful number, since it uses less digits than its factorization.

86840886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315787.

The product of its (nonzero) digits is 589824, while the sum is 48.

The square root of 86840886 is about 9318.8457439749. The cubic root of 86840886 is about 442.8344663975.

The spelling of 86840886 in words is "eighty-six million, eight hundred forty thousand, eight hundred eighty-six".