26859 has 8 divisors (see below), whose sum is σ = 40960. Its totient is φ = 15336.

The previous prime is 26849. The next prime is 26861. The reversal of 26859 is 95862.

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

It is not a de Polignac number, because 26859 - 2⁷ = 26731 is a prime.

It is a super-3 number, since 3×26859³ = 58128721673337, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 619 + ... + 660.

It is an arithmetic number, because the mean of its divisors is an integer number (5120).

2²⁶⁸⁵⁹ is an apocalyptic number.

26859 is a deficient number, since it is larger than the sum of its proper divisors (14101).

26859 is a wasteful number, since it uses less digits than its factorization.

26859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289.

The product of its digits is 4320, while the sum is 30.

The square root of 26859 is about 163.8871562997. The cubic root of 26859 is about 29.9476866078.

The spelling of 26859 in words is "twenty-six thousand, eight hundred fifty-nine".