538655886 has 16 divisors (see below), whose sum is σ = 1197013200. Its totient is φ = 179551944.

The previous prime is 538655881. The next prime is 538655933. The reversal of 538655886 is 688556835.

538655886 is a `hidden beast` number, since 5 + 3 + 8 + 6 + 558 + 86 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 9975109 = 538655886 / (5 + 3 + 8 + 6 + 5 + 5 + 8 + 8 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538655881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4987501 + ... + 4987608.

It is an arithmetic number, because the mean of its divisors is an integer number (74813325).

Almost surely, 2^538655886 is an apocalyptic number.

538655886 is an abundant number, since it is smaller than the sum of its proper divisors (658357314).

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

538655886 is a wasteful number, since it uses less digits than its factorization.

538655886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9975120 (or 9975114 counting only the distinct ones).

The product of its digits is 6912000, while the sum is 54.

The square root of 538655886 is about 23208.9613296244. The cubic root of 538655886 is about 813.6490779298.

The spelling of 538655886 in words is "five hundred thirty-eight million, six hundred fifty-five thousand, eight hundred eighty-six".