26866 has 16 divisors (see below), whose sum is σ = 48960. Its totient is φ = 10800.

The previous prime is 26863. The next prime is 26879. The reversal of 26866 is 66862.

It is a happy number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26861) 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, 216 + ... + 316.

It is an arithmetic number, because the mean of its divisors is an integer number (3060).

2²⁶⁸⁶⁶ is an apocalyptic number.

26866 is a deficient number, since it is larger than the sum of its proper divisors (22094).

26866 is a wasteful number, since it uses less digits than its factorization.

26866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129.

The product of its digits is 3456, while the sum is 28.

The square root of 26866 is about 163.9085110664. The cubic root of 26866 is about 29.9502880399.

The spelling of 26866 in words is "twenty-six thousand, eight hundred sixty-six".