86579388 has 96 divisors (see below), whose sum is σ = 260305920. Its totient is φ = 24373440.

The previous prime is 86579327. The next prime is 86579393. The reversal of 86579388 is 88397568.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52870 + ... + 54482.

It is an arithmetic number, because the mean of its divisors is an integer number (2711520).

Almost surely, 2^86579388 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86579388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130152960).

86579388 is an abundant number, since it is smaller than the sum of its proper divisors (173726532).

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

86579388 is a wasteful number, since it uses less digits than its factorization.

86579388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704 (or 1696 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 86579388 is about 9304.8045653845. The cubic root of 86579388 is about 442.3895271477.

The spelling of 86579388 in words is "eighty-six million, five hundred seventy-nine thousand, three hundred eighty-eight".