86243508 has 192 divisors, whose sum is σ = 262483200. Its totient is φ = 24261120.

The previous prime is 86243503. The next prime is 86243513. The reversal of 86243508 is 80534268.

It is an interprime number because it is at equal distance from previous prime (86243503) and next prime (86243513).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86243501) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1413798 + ... + 1413858.

It is an arithmetic number, because the mean of its divisors is an integer number (1367100).

Almost surely, 2^86243508 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 86243508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131241600).

86243508 is an abundant number, since it is smaller than the sum of its proper divisors (176239692).

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

86243508 is a wasteful number, since it uses less digits than its factorization.

86243508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 86243508 is about 9286.7382863953. The cubic root of 86243508 is about 441.8167104467.

The spelling of 86243508 in words is "eighty-six million, two hundred forty-three thousand, five hundred eight".