86397318 has 48 divisors (see below), whose sum is σ = 216172320. Its totient is φ = 24427008.

The previous prime is 86397317. The next prime is 86397329. The reversal of 86397318 is 81379368.

It is a happy number.

86397318 is a `hidden beast` number, since 8 + 639 + 7 + 3 + 1 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86397317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8688 + ... + 15756.

It is an arithmetic number, because the mean of its divisors is an integer number (4503590).

Almost surely, 2^86397318 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86397318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108086160).

86397318 is an abundant number, since it is smaller than the sum of its proper divisors (129775002).

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

86397318 is a wasteful number, since it uses less digits than its factorization.

86397318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7181 (or 7178 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 86397318 is about 9295.0157611486. The cubic root of 86397318 is about 442.0792054504.

The spelling of 86397318 in words is "eighty-six million, three hundred ninety-seven thousand, three hundred eighteen".