258669 has 12 divisors (see below), whose sum is σ = 383292. Its totient is φ = 168000.

The previous prime is 258659. The next prime is 258673. The reversal of 258669 is 966852.

It can be written as a sum of positive squares in 2 ways, for example, as 108900 + 149769 = 330^2 + 387^2 .

It is not a de Polignac number, because 258669 - 2⁵ = 258637 is a prime.

It is a super-2 number, since 2×258669² = 133819303122, which contains 22 as substring.

It is a zygodrome in base 8.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 258669.

It is not an unprimeable number, because it can be changed into a prime (258659) 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, 19 + ... + 719.

It is an arithmetic number, because the mean of its divisors is an integer number (31941).

258669 is a Friedman number, since it can be written as 8^6-59^2+6, using all its digits and the basic arithmetic operations.

2²⁵⁸⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

258669 is a deficient number, since it is larger than the sum of its proper divisors (124623).

258669 is a wasteful number, since it uses less digits than its factorization.

258669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748 (or 745 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 258669 is about 508.5951238461. The cubic root of 258669 is about 63.7159449022.

The spelling of 258669 in words is "two hundred fifty-eight thousand, six hundred sixty-nine".