523885 has 8 divisors (see below), whose sum is σ = 650520. Its totient is φ = 404544.

The previous prime is 523877. The next prime is 523903. The reversal of 523885 is 588325.

523885 is nontrivially palindromic in base 15.

It can be written as a sum of positive squares in 4 ways, for example, as 1156 + 522729 = 34^2 + 723^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 523885 - 2³ = 523877 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1662 + ... + 1951.

It is an arithmetic number, because the mean of its divisors is an integer number (81315).

2⁵²³⁸⁸⁵ is an apocalyptic number.

It is an amenable number.

523885 is a deficient number, since it is larger than the sum of its proper divisors (126635).

523885 is a wasteful number, since it uses less digits than its factorization.

523885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3647.

The product of its digits is 9600, while the sum is 31.

The square root of 523885 is about 723.7990052494. The cubic root of 523885 is about 80.6142815709.

The spelling of 523885 in words is "five hundred twenty-three thousand, eight hundred eighty-five".