259679 has 4 divisors (see below), whose sum is σ = 296784. Its totient is φ = 222576.

The previous prime is 259667. The next prime is 259681. The reversal of 259679 is 976952.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-259679 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 (259619) 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, 18542 + ... + 18555.

It is an arithmetic number, because the mean of its divisors is an integer number (74196).

2²⁵⁹⁶⁷⁹ is an apocalyptic number.

259679 is a deficient number, since it is larger than the sum of its proper divisors (37105).

259679 is an equidigital number, since it uses as much as digits as its factorization.

259679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37104.

The product of its digits is 34020, while the sum is 38.

The square root of 259679 is about 509.5870877485. The cubic root of 259679 is about 63.7987657115.

The spelling of 259679 in words is "two hundred fifty-nine thousand, six hundred seventy-nine".