258663 has 8 divisors (see below), whose sum is σ = 347776. Its totient is φ = 171000.

The previous prime is 258659. The next prime is 258673. The reversal of 258663 is 366852.

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

It is not a de Polignac number, because 258663 - 2² = 258659 is a prime.

It is a Duffinian number.

258663 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 258663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168 + ... + 738.

It is an arithmetic number, because the mean of its divisors is an integer number (43472).

258663 is a Friedman number, since it can be written as 8^6-(53+6)^2, using all its digits and the basic arithmetic operations.

2²⁵⁸⁶⁶³ is an apocalyptic number.

258663 is a deficient number, since it is larger than the sum of its proper divisors (89113).

258663 is a wasteful number, since it uses less digits than its factorization.

258663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725.

The product of its digits is 8640, while the sum is 30.

The square root of 258663 is about 508.5892252103. The cubic root of 258663 is about 63.7154522538.

The spelling of 258663 in words is "two hundred fifty-eight thousand, six hundred sixty-three".