26838919 has 2 divisors, whose sum is σ = 26838920. Its totient is φ = 26838918.

The previous prime is 26838913. The next prime is 26838941. The reversal of 26838919 is 91983862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26838919 - 2¹⁵ = 26806151 is a prime.

It is a super-2 number, since 2×26838919² = 1440655146177122, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26838913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13419459 + 13419460.

It is an arithmetic number, because the mean of its divisors is an integer number (13419460).

Almost surely, 2^26838919 is an apocalyptic number.

26838919 is a deficient number, since it is larger than the sum of its proper divisors (1).

26838919 is an equidigital number, since it uses as much as digits as its factorization.

26838919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 46.

The square root of 26838919 is about 5180.6292088896. The cubic root of 26838919 is about 299.4022133319.

The spelling of 26838919 in words is "twenty-six million, eight hundred thirty-eight thousand, nine hundred nineteen".