259878 has 8 divisors (see below), whose sum is σ = 519768. Its totient is φ = 86624.

The previous prime is 259867. The next prime is 259907. The reversal of 259878 is 878952.

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

259878 is an admirable number.

It is a congruent number.

It is an unprimeable number.

259878 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21651 + ... + 21662.

It is an arithmetic number, because the mean of its divisors is an integer number (64971).

2²⁵⁹⁸⁷⁸ is an apocalyptic number.

259878 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

259878 is a wasteful number, since it uses less digits than its factorization.

259878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43318.

The product of its digits is 40320, while the sum is 39.

The square root of 259878 is about 509.7823064799. The cubic root of 259878 is about 63.8150585354.

The spelling of 259878 in words is "two hundred fifty-nine thousand, eight hundred seventy-eight".