26913863 has 2 divisors, whose sum is σ = 26913864. Its totient is φ = 26913862.

The previous prime is 26913857. The next prime is 26913881. The reversal of 26913863 is 36831962.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26913863 - 2⁴ = 26913847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26963863) 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, 13456931 + 13456932.

It is an arithmetic number, because the mean of its divisors is an integer number (13456932).

Almost surely, 2^26913863 is an apocalyptic number.

26913863 is a deficient number, since it is larger than the sum of its proper divisors (1).

26913863 is an equidigital number, since it uses as much as digits as its factorization.

26913863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 38.

The square root of 26913863 is about 5187.8572648060. The cubic root of 26913863 is about 299.6806342130.

The spelling of 26913863 in words is "twenty-six million, nine hundred thirteen thousand, eight hundred sixty-three".