26863 has 2 divisors, whose sum is σ = 26864. Its totient is φ = 26862.

The previous prime is 26861. The next prime is 26879. The reversal of 26863 is 36862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26863 - 2¹ = 26861 is a prime.

Together with 26861, it forms a pair of twin primes.

It is a plaindrome in base 12 and base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13431 + 13432.

It is an arithmetic number, because the mean of its divisors is an integer number (13432).

2²⁶⁸⁶³ is an apocalyptic number.

26863 is a deficient number, since it is larger than the sum of its proper divisors (1).

26863 is an equidigital number, since it uses as much as digits as its factorization.

26863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

The square root of 26863 is about 163.8993593642. The cubic root of 26863 is about 29.9491731958.

Subtracting 26863 from its reverse (36862), we obtain a palindrome (9999).

The spelling of 26863 in words is "twenty-six thousand, eight hundred sixty-three".