258871423 has 4 divisors (see below), whose sum is σ = 258923448. Its totient is φ = 258819400.

The previous prime is 258871397. The next prime is 258871433. The reversal of 258871423 is 324178852.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 258871423 - 2⁵ = 258871391 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258871433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17653 + ... + 28798.

It is an arithmetic number, because the mean of its divisors is an integer number (64730862).

Almost surely, 2^258871423 is an apocalyptic number.

258871423 is a deficient number, since it is larger than the sum of its proper divisors (52025).

258871423 is an equidigital number, since it uses as much as digits as its factorization.

258871423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52024.

The product of its digits is 107520, while the sum is 40.

The square root of 258871423 is about 16089.4817505102. The cubic root of 258871423 is about 637.3256100209.

The spelling of 258871423 in words is "two hundred fifty-eight million, eight hundred seventy-one thousand, four hundred twenty-three".