27009907 has 2 divisors, whose sum is σ = 27009908. Its totient is φ = 27009906.

The previous prime is 27009893. The next prime is 27009919. The reversal of 27009907 is 70990072.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27009907 - 2⁷ = 27009779 is a prime.

It is a super-2 number, since 2×27009907² = 1459070152297298, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27009937) 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, 13504953 + 13504954.

It is an arithmetic number, because the mean of its divisors is an integer number (13504954).

Almost surely, 2^27009907 is an apocalyptic number.

27009907 is a deficient number, since it is larger than the sum of its proper divisors (1).

27009907 is an equidigital number, since it uses as much as digits as its factorization.

27009907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7938, while the sum is 34.

The square root of 27009907 is about 5197.1056367944. The cubic root of 27009907 is about 300.0366881057.

Adding to 27009907 its reverse (70990072), we get a palindrome (97999979).

The spelling of 27009907 in words is "twenty-seven million, nine thousand, nine hundred seven".