523859 has 6 divisors (see below), whose sum is σ = 609444. Its totient is φ = 448980.

The previous prime is 523847. The next prime is 523867. The reversal of 523859 is 958325.

It is a happy number.

It is not a de Polignac number, because 523859 - 2⁸ = 523603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (523829) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5297 + ... + 5394.

It is an arithmetic number, because the mean of its divisors is an integer number (101574).

2⁵²³⁸⁵⁹ is an apocalyptic number.

523859 is a deficient number, since it is larger than the sum of its proper divisors (85585).

523859 is a wasteful number, since it uses less digits than its factorization.

523859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10705 (or 10698 counting only the distinct ones).

The product of its digits is 10800, while the sum is 32.

The square root of 523859 is about 723.7810442392. The cubic root of 523859 is about 80.6129479411.

The spelling of 523859 in words is "five hundred twenty-three thousand, eight hundred fifty-nine".