258993 has 12 divisors (see below), whose sum is σ = 427648. Its totient is φ = 147960.

The previous prime is 258991. The next prime is 259001. The reversal of 258993 is 399852.

It is not a de Polignac number, because 258993 - 2¹ = 258991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (258991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1993 + ... + 2118.

2²⁵⁸⁹⁹³ is an apocalyptic number.

It is an amenable number.

258993 is a deficient number, since it is larger than the sum of its proper divisors (168655).

258993 is a wasteful number, since it uses less digits than its factorization.

258993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4124 (or 4121 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 258993 is about 508.9135486505. The cubic root of 258993 is about 63.7425366119.

The spelling of 258993 in words is "two hundred fifty-eight thousand, nine hundred ninety-three".