26856023 has 2 divisors, whose sum is σ = 26856024. Its totient is φ = 26856022.

The previous prime is 26856007. The next prime is 26856077. The reversal of 26856023 is 32065862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26856023 - 2⁴ = 26856007 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26856083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13428011 + 13428012.

It is an arithmetic number, because the mean of its divisors is an integer number (13428012).

Almost surely, 2^26856023 is an apocalyptic number.

26856023 is a deficient number, since it is larger than the sum of its proper divisors (1).

26856023 is an equidigital number, since it uses as much as digits as its factorization.

26856023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 26856023 is about 5182.2797107065. The cubic root of 26856023 is about 299.4658011886.

The spelling of 26856023 in words is "twenty-six million, eight hundred fifty-six thousand, twenty-three".