258766 has 8 divisors (see below), whose sum is σ = 392040. Its totient is φ = 128088.

The previous prime is 258763. The next prime is 258779. The reversal of 258766 is 667852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258763) 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, 376 + ... + 811.

It is an arithmetic number, because the mean of its divisors is an integer number (49005).

2²⁵⁸⁷⁶⁶ is an apocalyptic number.

258766 is a deficient number, since it is larger than the sum of its proper divisors (133274).

258766 is a wasteful number, since it uses less digits than its factorization.

258766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298.

The product of its digits is 20160, while the sum is 34.

The square root of 258766 is about 508.6904756333. The cubic root of 258766 is about 63.7239083281.

It can be divided in two parts, 258 and 766, that added together give a 10-th power (1024 = 2¹⁰).

The spelling of 258766 in words is "two hundred fifty-eight thousand, seven hundred sixty-six".