258859 has 4 divisors (see below), whose sum is σ = 274104. Its totient is φ = 243616.

The previous prime is 258847. The next prime is 258871. The reversal of 258859 is 958852.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (258847) and next prime (258871).

It is a cyclic number.

It is not a de Polignac number, because 258859 - 2⁵ = 258827 is a prime.

It is a Duffinian number.

258859 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (258809) 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, 7597 + ... + 7630.

It is an arithmetic number, because the mean of its divisors is an integer number (68526).

2²⁵⁸⁸⁵⁹ is an apocalyptic number.

258859 is a deficient number, since it is larger than the sum of its proper divisors (15245).

258859 is a wasteful number, since it uses less digits than its factorization.

258859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15244.

The product of its digits is 28800, while the sum is 37.

The square root of 258859 is about 508.7818786081. The cubic root of 258859 is about 63.7315414969.

The spelling of 258859 in words is "two hundred fifty-eight thousand, eight hundred fifty-nine".