259623 has 24 divisors (see below), whose sum is σ = 463008. Its totient is φ = 136512.

The previous prime is 259621. The next prime is 259627. The reversal of 259623 is 326952.

It is not a de Polignac number, because 259623 - 2¹ = 259621 is a prime.

259623 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 661 + ... + 977.

It is an arithmetic number, because the mean of its divisors is an integer number (19292).

2²⁵⁹⁶²³ is an apocalyptic number.

259623 is a deficient number, since it is larger than the sum of its proper divisors (203385).

259623 is a wasteful number, since it uses less digits than its factorization.

259623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 340 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 259623 is about 509.5321383387. The cubic root of 259623 is about 63.7941792956.

The spelling of 259623 in words is "two hundred fifty-nine thousand, six hundred twenty-three".