86624020 has 48 divisors (see below), whose sum is σ = 208551168. Its totient is φ = 29606400.

The previous prime is 86624017. The next prime is 86624051. The reversal of 86624020 is 2042668.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 86624020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55369 + ... + 56911.

It is an arithmetic number, because the mean of its divisors is an integer number (4344816).

Almost surely, 2^86624020 is an apocalyptic number.

It is an amenable number.

86624020 is an abundant number, since it is smaller than the sum of its proper divisors (121927148).

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

86624020 is a wasteful number, since it uses less digits than its factorization.

86624020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1960 (or 1958 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 86624020 is about 9307.2025872439. The cubic root of 86624020 is about 442.4655319104.

Adding to 86624020 its reverse (2042668), we get a palindrome (88666688).

The spelling of 86624020 in words is "eighty-six million, six hundred twenty-four thousand, twenty".