8485638 has 32 divisors (see below), whose sum is σ = 19491840. Its totient is φ = 2412480.

The previous prime is 8485619. The next prime is 8485639. The reversal of 8485638 is 8365848.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 8485638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8485639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11443 + ... + 12161.

It is an arithmetic number, because the mean of its divisors is an integer number (609120).

Almost surely, 2^8485638 is an apocalyptic number.

8485638 is an abundant number, since it is smaller than the sum of its proper divisors (11006202).

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

8485638 is a wasteful number, since it uses less digits than its factorization.

8485638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012.

The product of its digits is 184320, while the sum is 42.

The square root of 8485638 is about 2913.0118434363. The cubic root of 8485638 is about 203.9677476886.

The spelling of 8485638 in words is "eight million, four hundred eighty-five thousand, six hundred thirty-eight".