86555812 has 12 divisors (see below), whose sum is σ = 173111680. Its totient is φ = 37095336.

The previous prime is 86555809. The next prime is 86555867. The reversal of 86555812 is 21855568.

86555812 is an admirable number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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, 1545612 + ... + 1545667.

Almost surely, 2^86555812 is an apocalyptic number.

It is an amenable number.

86555812 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

86555812 is a wasteful number, since it uses less digits than its factorization.

86555812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3091290 (or 3091288 counting only the distinct ones).

The product of its digits is 96000, while the sum is 40.

The square root of 86555812 is about 9303.5376067386. The cubic root of 86555812 is about 442.3493685427.

The spelling of 86555812 in words is "eighty-six million, five hundred fifty-five thousand, eight hundred twelve".