538613 has 4 divisors (see below), whose sum is σ = 546720. Its totient is φ = 530508.

The previous prime is 538597. The next prime is 538621. The reversal of 538613 is 316835.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 316835 = 5 ⋅63367.

It is a cyclic number.

It is not a de Polignac number, because 538613 - 2⁴ = 538597 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 (538513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3953 + ... + 4086.

It is an arithmetic number, because the mean of its divisors is an integer number (136680).

2⁵³⁸⁶¹³ is an apocalyptic number.

It is an amenable number.

538613 is a deficient number, since it is larger than the sum of its proper divisors (8107).

538613 is an equidigital number, since it uses as much as digits as its factorization.

538613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8106.

The product of its digits is 2160, while the sum is 26.

The square root of 538613 is about 733.9025820911. The cubic root of 538613 is about 81.3627484007.

The spelling of 538613 in words is "five hundred thirty-eight thousand, six hundred thirteen".