27005899 has 2 divisors, whose sum is σ = 27005900. Its totient is φ = 27005898.

The previous prime is 27005863. The next prime is 27005903. The reversal of 27005899 is 99850072.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27005899 - 2⁹ = 27005387 is a prime.

It is not a weakly prime, because it can be changed into another prime (27000899) 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, 13502949 + 13502950.

It is an arithmetic number, because the mean of its divisors is an integer number (13502950).

Almost surely, 2^27005899 is an apocalyptic number.

27005899 is a deficient number, since it is larger than the sum of its proper divisors (1).

27005899 is an equidigital number, since it uses as much as digits as its factorization.

27005899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 27005899 is about 5196.7200232454. The cubic root of 27005899 is about 300.0218465572.

The spelling of 27005899 in words is "twenty-seven million, five thousand, eight hundred ninety-nine".