26939863 has 4 divisors (see below), whose sum is σ = 26950968. Its totient is φ = 26928760.

The previous prime is 26939833. The next prime is 26939867. The reversal of 26939863 is 36893962.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 26939863 - 2⁹ = 26939351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26939867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181 + ... + 7342.

It is an arithmetic number, because the mean of its divisors is an integer number (6737742).

Almost surely, 2^26939863 is an apocalyptic number.

26939863 is a deficient number, since it is larger than the sum of its proper divisors (11105).

26939863 is an equidigital number, since it uses as much as digits as its factorization.

26939863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11104.

The product of its digits is 419904, while the sum is 46.

The square root of 26939863 is about 5190.3625114244. The cubic root of 26939863 is about 299.7771048038. Note that the first 3 decimals are identical.

The spelling of 26939863 in words is "twenty-six million, nine hundred thirty-nine thousand, eight hundred sixty-three".