557839 has 4 divisors (see below), whose sum is σ = 570856. Its totient is φ = 544824.

The previous prime is 557831. The next prime is 557857. The reversal of 557839 is 938755.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 938755 = 5 ⋅187751.

It is a cyclic number.

It is not a de Polignac number, because 557839 - 2³ = 557831 is a prime.

It is a super-2 number, since 2×557839² = 622368699842, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 557798 and 557807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557831) 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, 6444 + ... + 6529.

It is an arithmetic number, because the mean of its divisors is an integer number (142714).

2⁵⁵⁷⁸³⁹ is an apocalyptic number.

557839 is a deficient number, since it is larger than the sum of its proper divisors (13017).

557839 is a wasteful number, since it uses less digits than its factorization.

557839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13016.

The product of its digits is 37800, while the sum is 37.

The square root of 557839 is about 746.8862028449. The cubic root of 557839 is about 82.3195443515.

The spelling of 557839 in words is "five hundred fifty-seven thousand, eight hundred thirty-nine".