538883685 has 20 divisors (see below), whose sum is σ = 965999628. Its totient is φ = 287404416.

The previous prime is 538883677. The next prime is 538883687. The reversal of 538883685 is 586388835.

It can be written as a sum of positive squares in 2 ways, for example, as 401361156 + 137522529 = 20034^2 + 11727^2 .

It is not a de Polignac number, because 538883685 - 2³ = 538883677 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538883687) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 664884 + ... + 665693.

Almost surely, 2^538883685 is an apocalyptic number.

It is an amenable number.

538883685 is a deficient number, since it is larger than the sum of its proper divisors (427115943).

538883685 is a wasteful number, since it uses less digits than its factorization.

538883685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330594 (or 1330585 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 54.

The square root of 538883685 is about 23213.8683764684. The cubic root of 538883685 is about 813.7637598812.

The spelling of 538883685 in words is "five hundred thirty-eight million, eight hundred eighty-three thousand, six hundred eighty-five".