258969 has 4 divisors (see below), whose sum is σ = 345296. Its totient is φ = 172644.

The previous prime is 258967. The next prime is 258971. The reversal of 258969 is 969852.

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 an interprime number because it is at equal distance from previous prime (258967) and next prime (258971).

It is not a de Polignac number, because 258969 - 2¹ = 258967 is a prime.

It is a super-2 number, since 2×258969² = 134129885922, which contains 22 as substring.

It is a D-number.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (258967) 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, 43159 + ... + 43164.

It is an arithmetic number, because the mean of its divisors is an integer number (86324).

2²⁵⁸⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

258969 is a deficient number, since it is larger than the sum of its proper divisors (86327).

258969 is an equidigital number, since it uses as much as digits as its factorization.

258969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86326.

The product of its digits is 38880, while the sum is 39.

The square root of 258969 is about 508.8899684608. The cubic root of 258969 is about 63.7405676164.

The spelling of 258969 in words is "two hundred fifty-eight thousand, nine hundred sixty-nine".