26856239 has 2 divisors, whose sum is σ = 26856240. Its totient is φ = 26856238.

The previous prime is 26856229. The next prime is 26856257. The reversal of 26856239 is 93265862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26856239 - 2¹² = 26852143 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 26856196 and 26856205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26856229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13428119 + 13428120.

It is an arithmetic number, because the mean of its divisors is an integer number (13428120).

Almost surely, 2^26856239 is an apocalyptic number.

26856239 is a deficient number, since it is larger than the sum of its proper divisors (1).

26856239 is an equidigital number, since it uses as much as digits as its factorization.

26856239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 41.

The square root of 26856239 is about 5182.3005509137. The cubic root of 26856239 is about 299.4666040431.

The spelling of 26856239 in words is "twenty-six million, eight hundred fifty-six thousand, two hundred thirty-nine".