258641 has 4 divisors (see below), whose sum is σ = 264192. Its totient is φ = 253092.

The previous prime is 258637. The next prime is 258659. The reversal of 258641 is 146852.

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 258641 - 2² = 258637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 258641.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 258641.

It is not an unprimeable number, because it can be changed into a prime (258611) 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, 2705 + ... + 2798.

It is an arithmetic number, because the mean of its divisors is an integer number (66048).

2²⁵⁸⁶⁴¹ is an apocalyptic number.

It is an amenable number.

258641 is a deficient number, since it is larger than the sum of its proper divisors (5551).

258641 is an equidigital number, since it uses as much as digits as its factorization.

258641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5550.

The product of its digits is 1920, while the sum is 26.

The square root of 258641 is about 508.5675962937. The cubic root of 258641 is about 63.7136458110.

The spelling of 258641 in words is "two hundred fifty-eight thousand, six hundred forty-one".