258637423 has 4 divisors (see below), whose sum is σ = 282149928. Its totient is φ = 235124920.

The previous prime is 258637417. The next prime is 258637441. The reversal of 258637423 is 324736852.

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 258637423 - 2⁵ = 258637391 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 (258637453) 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, 11756236 + ... + 11756257.

It is an arithmetic number, because the mean of its divisors is an integer number (70537482).

Almost surely, 2^258637423 is an apocalyptic number.

258637423 is a deficient number, since it is larger than the sum of its proper divisors (23512505).

258637423 is a wasteful number, since it uses less digits than its factorization.

258637423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23512504.

The product of its digits is 241920, while the sum is 40.

The square root of 258637423 is about 16082.2082749851. The cubic root of 258637423 is about 637.1335209020.

The spelling of 258637423 in words is "two hundred fifty-eight million, six hundred thirty-seven thousand, four hundred twenty-three".