258863 has 8 divisors (see below), whose sum is σ = 286416. Its totient is φ = 232000.

The previous prime is 258847. The next prime is 258871. The reversal of 258863 is 368852.

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 258863 - 2⁴ = 258847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258803) 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 7 ways as a sum of consecutive naturals, for example, 995 + ... + 1227.

It is an arithmetic number, because the mean of its divisors is an integer number (35802).

2²⁵⁸⁸⁶³ is an apocalyptic number.

258863 is a deficient number, since it is larger than the sum of its proper divisors (27553).

258863 is a wasteful number, since it uses less digits than its factorization.

258863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345.

The product of its digits is 11520, while the sum is 32.

The square root of 258863 is about 508.7858095505. The cubic root of 258863 is about 63.7318697642.

It can be divided in two parts, 25 and 8863, that added together give a palindrome (8888).

The spelling of 258863 in words is "two hundred fifty-eight thousand, eight hundred sixty-three".