259826 has 16 divisors (see below), whose sum is σ = 453696. Its totient is φ = 109296.

The previous prime is 259823. The next prime is 259829. The reversal of 259826 is 628952.

It is an interprime number because it is at equal distance from previous prime (259823) and next prime (259829).

It is a junction number, because it is equal to n+sod(n) for n = 259792 and 259801.

It is not an unprimeable number, because it can be changed into a prime (259823) 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 7 ways as a sum of consecutive naturals, for example, 800 + ... + 1076.

It is an arithmetic number, because the mean of its divisors is an integer number (28356).

2²⁵⁹⁸²⁶ is an apocalyptic number.

259826 is a deficient number, since it is larger than the sum of its proper divisors (193870).

259826 is a wasteful number, since it uses less digits than its factorization.

259826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353.

The product of its digits is 8640, while the sum is 32.

The square root of 259826 is about 509.7313017659. The cubic root of 259826 is about 63.8108019171.

The spelling of 259826 in words is "two hundred fifty-nine thousand, eight hundred twenty-six".