258829 has 4 divisors (see below), whose sum is σ = 264384. Its totient is φ = 253276.

The previous prime is 258827. The next prime is 258847. The reversal of 258829 is 928852.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 258829 - 2¹ = 258827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 258794 and 258803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2707 + ... + 2800.

It is an arithmetic number, because the mean of its divisors is an integer number (66096).

2²⁵⁸⁸²⁹ is an apocalyptic number.

It is an amenable number.

258829 is a deficient number, since it is larger than the sum of its proper divisors (5555).

258829 is an equidigital number, since it uses as much as digits as its factorization.

258829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5554.

The product of its digits is 11520, while the sum is 34.

The square root of 258829 is about 508.7523955718. The cubic root of 258829 is about 63.7290793842.

The spelling of 258829 in words is "two hundred fifty-eight thousand, eight hundred twenty-nine".