27648911 has 2 divisors, whose sum is σ = 27648912. Its totient is φ = 27648910.

The previous prime is 27648893. The next prime is 27648913. The reversal of 27648911 is 11984672.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27648911 - 2⁶ = 27648847 is a prime.

Together with 27648913, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27648913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13824455 + 13824456.

It is an arithmetic number, because the mean of its divisors is an integer number (13824456).

Almost surely, 2^27648911 is an apocalyptic number.

27648911 is a deficient number, since it is larger than the sum of its proper divisors (1).

27648911 is an equidigital number, since it uses as much as digits as its factorization.

27648911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 38.

The square root of 27648911 is about 5258.2231789836. The cubic root of 27648911 is about 302.3843730843.

The spelling of 27648911 in words is "twenty-seven million, six hundred forty-eight thousand, nine hundred eleven".