259879 has 4 divisors (see below), whose sum is σ = 275184. Its totient is φ = 244576.

The previous prime is 259867. The next prime is 259907. The reversal of 259879 is 978952.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 259879 - 2⁷ = 259751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7627 + ... + 7660.

It is an arithmetic number, because the mean of its divisors is an integer number (68796).

2²⁵⁹⁸⁷⁹ is an apocalyptic number.

259879 is a deficient number, since it is larger than the sum of its proper divisors (15305).

259879 is a wasteful number, since it uses less digits than its factorization.

259879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15304.

The product of its digits is 45360, while the sum is 40.

The square root of 259879 is about 509.7832872898. The cubic root of 259879 is about 63.8151403879.

The spelling of 259879 in words is "two hundred fifty-nine thousand, eight hundred seventy-nine".