86237920 has 24 divisors (see below), whose sum is σ = 203737464. Its totient is φ = 34495104.

The previous prime is 86237897. The next prime is 86237927. The reversal of 86237920 is 2973268.

It is a self number, because there is not a number n which added to its sum of digits gives 86237920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86237927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269334 + ... + 269653.

It is an arithmetic number, because the mean of its divisors is an integer number (8489061).

Almost surely, 2^86237920 is an apocalyptic number.

86237920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

86237920 is an abundant number, since it is smaller than the sum of its proper divisors (117499544).

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

86237920 is a wasteful number, since it uses less digits than its factorization.

86237920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539002 (or 538994 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 86237920 is about 9286.4374223919. The cubic root of 86237920 is about 441.8071679889.

The spelling of 86237920 in words is "eighty-six million, two hundred thirty-seven thousand, nine hundred twenty".