538819 has 4 divisors (see below), whose sum is σ = 546480. Its totient is φ = 531160.

The previous prime is 538817. The next prime is 538823. The reversal of 538819 is 918835.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 538819 - 2¹ = 538817 is a prime.

It is a super-2 number, since 2×538819² = 580651829522, which contains 22 as substring.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 3724 + ... + 3865.

It is an arithmetic number, because the mean of its divisors is an integer number (136620).

2⁵³⁸⁸¹⁹ is an apocalyptic number.

538819 is a deficient number, since it is larger than the sum of its proper divisors (7661).

538819 is an equidigital number, since it uses as much as digits as its factorization.

538819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7660.

The product of its digits is 8640, while the sum is 34.

The square root of 538819 is about 734.0429142768. The cubic root of 538819 is about 81.3731198485.

The spelling of 538819 in words is "five hundred thirty-eight thousand, eight hundred nineteen".