26899 has 4 divisors (see below), whose sum is σ = 27664. Its totient is φ = 26136.

The previous prime is 26893. The next prime is 26903. The reversal of 26899 is 99862.

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 26899 - 2³ = 26891 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (26891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327 + ... + 400.

It is an arithmetic number, because the mean of its divisors is an integer number (6916).

2²⁶⁸⁹⁹ is an apocalyptic number.

26899 is a deficient number, since it is larger than the sum of its proper divisors (765).

26899 is an equidigital number, since it uses as much as digits as its factorization.

26899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764.

The product of its digits is 7776, while the sum is 34.

The square root of 26899 is about 164.0091460864. The cubic root of 26899 is about 29.9625458516.

The spelling of 26899 in words is "twenty-six thousand, eight hundred ninety-nine".