86685880 has 32 divisors (see below), whose sum is σ = 198246240. Its totient is φ = 34104960.

The previous prime is 86685877. The next prime is 86685881. The reversal of 86685880 is 8858668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86685881) by changing a digit.

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, 15324 + ... + 20203.

It is an arithmetic number, because the mean of its divisors is an integer number (6195195).

Almost surely, 2^86685880 is an apocalyptic number.

It is an amenable number.

86685880 is an abundant number, since it is smaller than the sum of its proper divisors (111560360).

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

86685880 is a wasteful number, since it uses less digits than its factorization.

86685880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35599 (or 35595 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 49.

The square root of 86685880 is about 9310.5252268602. The cubic root of 86685880 is about 442.5708314375.

The spelling of 86685880 in words is "eighty-six million, six hundred eighty-five thousand, eight hundred eighty".