863090538 has 16 divisors (see below), whose sum is σ = 1726785216. Its totient is φ = 287596160.

The previous prime is 863090537. The next prime is 863090567. The reversal of 863090538 is 835090368.

It is a self number, because there is not a number n which added to its sum of digits gives 863090538.

It is not an unprimeable number, because it can be changed into a prime (863090537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5406 + ... + 41897.

It is an arithmetic number, because the mean of its divisors is an integer number (107924076).

Almost surely, 2^863090538 is an apocalyptic number.

863090538 is an abundant number, since it is smaller than the sum of its proper divisors (863694678).

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

863090538 is a wasteful number, since it uses less digits than its factorization.

863090538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50349.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 863090538 is about 29378.4025774037. The cubic root of 863090538 is about 952.1063284540.

The spelling of 863090538 in words is "eight hundred sixty-three million, ninety thousand, five hundred thirty-eight".