26889011 has 4 divisors (see below), whose sum is σ = 26899392. Its totient is φ = 26878632.

The previous prime is 26889007. The next prime is 26889013. The reversal of 26889011 is 11098862.

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 26889011 - 2² = 26889007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26889013) 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 in 3 ways as a sum of consecutive naturals, for example, 2270 + ... + 7676.

It is an arithmetic number, because the mean of its divisors is an integer number (6724848).

Almost surely, 2^26889011 is an apocalyptic number.

26889011 is a deficient number, since it is larger than the sum of its proper divisors (10381).

26889011 is an equidigital number, since it uses as much as digits as its factorization.

26889011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10380.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 26889011 is about 5185.4615030873. The cubic root of 26889011 is about 299.5883650769.

The spelling of 26889011 in words is "twenty-six million, eight hundred eighty-nine thousand, eleven".