258343 has 4 divisors (see below), whose sum is σ = 271960. Its totient is φ = 244728.

The previous prime is 258337. The next prime is 258353. The reversal of 258343 is 343852.

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 258343 - 2¹⁷ = 127271 is a prime.

It is a super-2 number, since 2×258343² = 133482211298, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6780 + ... + 6817.

It is an arithmetic number, because the mean of its divisors is an integer number (67990).

2²⁵⁸³⁴³ is an apocalyptic number.

258343 is a deficient number, since it is larger than the sum of its proper divisors (13617).

258343 is a wasteful number, since it uses less digits than its factorization.

258343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13616.

The product of its digits is 2880, while the sum is 25.

The square root of 258343 is about 508.2745321182. The cubic root of 258343 is about 63.6891666255.

The spelling of 258343 in words is "two hundred fifty-eight thousand, three hundred forty-three".