258764 has 12 divisors (see below), whose sum is σ = 494088. Its totient is φ = 117600.

The previous prime is 258763. The next prime is 258779. The reversal of 258764 is 467852.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 258764.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 258764.

It is not an unprimeable number, because it can be changed into a prime (258763) 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, 2897 + ... + 2984.

It is an arithmetic number, because the mean of its divisors is an integer number (41174).

2²⁵⁸⁷⁶⁴ is an apocalyptic number.

It is an amenable number.

258764 is a deficient number, since it is larger than the sum of its proper divisors (235324).

258764 is a wasteful number, since it uses less digits than its factorization.

258764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5896 (or 5894 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 258764 is about 508.6885097975. The cubic root of 258764 is about 63.7237441539.

The spelling of 258764 in words is "two hundred fifty-eight thousand, seven hundred sixty-four".