538813 has 12 divisors (see below), whose sum is σ = 610204. Its totient is φ = 475200.

The previous prime is 538801. The next prime is 538817. The reversal of 538813 is 318835.

538813 is nontrivially palindromic in base 3 and base 9.

538813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 131769 + 407044 = 363^2 + 638^2 .

It is not a de Polignac number, because 538813 - 2⁹ = 538301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7345 + ... + 7417.

2⁵³⁸⁸¹³ is an apocalyptic number.

It is an amenable number.

538813 is a deficient number, since it is larger than the sum of its proper divisors (71391).

538813 is a wasteful number, since it uses less digits than its factorization.

538813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 145 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 538813 is about 734.0388273109. The cubic root of 538813 is about 81.3728178049.

The spelling of 538813 in words is "five hundred thirty-eight thousand, eight hundred thirteen".