258497 has 4 divisors (see below), whose sum is σ = 269760. Its totient is φ = 247236.

The previous prime is 258491. The next prime is 258499. The reversal of 258497 is 794852.

It is a happy number.

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 258497 - 2⁸ = 258241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (258491) 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, 5597 + ... + 5642.

It is an arithmetic number, because the mean of its divisors is an integer number (67440).

2²⁵⁸⁴⁹⁷ is an apocalyptic number.

It is an amenable number.

258497 is a deficient number, since it is larger than the sum of its proper divisors (11263).

258497 is a wasteful number, since it uses less digits than its factorization.

258497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11262.

The product of its digits is 20160, while the sum is 35.

The square root of 258497 is about 508.4260024822. The cubic root of 258497 is about 63.7018192919.

The spelling of 258497 in words is "two hundred fifty-eight thousand, four hundred ninety-seven".