26423231 has 2 divisors, whose sum is σ = 26423232. Its totient is φ = 26423230.

The previous prime is 26423227. The next prime is 26423233. The reversal of 26423231 is 13232462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26423231 - 2² = 26423227 is a prime.

It is a super-2 number, since 2×26423231² = 1396374272958722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 26423233, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 26423197 and 26423206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26423233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13211615 + 13211616.

It is an arithmetic number, because the mean of its divisors is an integer number (13211616).

Almost surely, 2^26423231 is an apocalyptic number.

26423231 is a deficient number, since it is larger than the sum of its proper divisors (1).

26423231 is an equidigital number, since it uses as much as digits as its factorization.

26423231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 23.

The square root of 26423231 is about 5140.3531979816. The cubic root of 26423231 is about 297.8484244843.

Adding to 26423231 its reverse (13232462), we get a palindrome (39655693).

The spelling of 26423231 in words is "twenty-six million, four hundred twenty-three thousand, two hundred thirty-one".