86317878 has 8 divisors (see below), whose sum is σ = 172635768. Its totient is φ = 28772624.

The previous prime is 86317871. The next prime is 86317883. The reversal of 86317878 is 87871368.

It is a sphenic number, since it is the product of 3 distinct primes.

86317878 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86317871) 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 3 ways as a sum of consecutive naturals, for example, 7193151 + ... + 7193162.

It is an arithmetic number, because the mean of its divisors is an integer number (21579471).

Almost surely, 2^86317878 is an apocalyptic number.

86317878 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.

86317878 is a wasteful number, since it uses less digits than its factorization.

86317878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14386318.

The product of its digits is 451584, while the sum is 48.

The square root of 86317878 is about 9290.7415204600. The cubic root of 86317878 is about 441.9436706059.

The spelling of 86317878 in words is "eighty-six million, three hundred seventeen thousand, eight hundred seventy-eight".