538619 has 4 divisors (see below), whose sum is σ = 540144. Its totient is φ = 537096.

The previous prime is 538597. The next prime is 538621. The reversal of 538619 is 916835.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-538619 is a prime.

It is a super-2 number, since 2×538619² = 580220854322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74 + ... + 1040.

It is an arithmetic number, because the mean of its divisors is an integer number (135036).

2⁵³⁸⁶¹⁹ is an apocalyptic number.

538619 is a deficient number, since it is larger than the sum of its proper divisors (1525).

538619 is an equidigital number, since it uses as much as digits as its factorization.

538619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524.

The product of its digits is 6480, while the sum is 32.

The square root of 538619 is about 733.9066698157. The cubic root of 538619 is about 81.3630505191.

The spelling of 538619 in words is "five hundred thirty-eight thousand, six hundred nineteen".