26423819 has 2 divisors, whose sum is σ = 26423820. Its totient is φ = 26423818.

The previous prime is 26423783. The next prime is 26423821. The reversal of 26423819 is 91832462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26423819 - 2²⁰ = 25375243 is a prime.

It is a super-2 number, since 2×26423819² = 1396436421089522, which contains 22 as substring.

Together with 26423821, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26423119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13211909 + 13211910.

It is an arithmetic number, because the mean of its divisors is an integer number (13211910).

Almost surely, 2^26423819 is an apocalyptic number.

26423819 is a deficient number, since it is larger than the sum of its proper divisors (1).

26423819 is an equidigital number, since it uses as much as digits as its factorization.

26423819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 35.

The square root of 26423819 is about 5140.4103921769. The cubic root of 26423819 is about 297.8506338227.

The spelling of 26423819 in words is "twenty-six million, four hundred twenty-three thousand, eight hundred nineteen".