538863 has 16 divisors (see below), whose sum is σ = 794976. Its totient is φ = 322560.

The previous prime is 538841. The next prime is 538871. The reversal of 538863 is 368835.

It is not a de Polignac number, because 538863 - 2⁶ = 538799 is a prime.

It is a d-powerful number, because it can be written as 5³ + 3⁸ + 8 + 8³ + 6³ + 3¹² .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1431 + ... + 1767.

It is an arithmetic number, because the mean of its divisors is an integer number (49686).

2⁵³⁸⁸⁶³ is an apocalyptic number.

538863 is a deficient number, since it is larger than the sum of its proper divisors (256113).

538863 is a wasteful number, since it uses less digits than its factorization.

538863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394.

The product of its digits is 17280, while the sum is 33.

The square root of 538863 is about 734.0728846647. The cubic root of 538863 is about 81.3753347666.

The spelling of 538863 in words is "five hundred thirty-eight thousand, eight hundred sixty-three".