27307939 has 2 divisors, whose sum is σ = 27307940. Its totient is φ = 27307938.

The previous prime is 27307871. The next prime is 27307979. The reversal of 27307939 is 93970372.

It is an a-pointer prime, because the next prime (27307979) can be obtained adding 27307939 to its sum of digits (40).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27307939 - 2¹⁹ = 26783651 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27307979) 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, 13653969 + 13653970.

It is an arithmetic number, because the mean of its divisors is an integer number (13653970).

Almost surely, 2^27307939 is an apocalyptic number.

27307939 is a deficient number, since it is larger than the sum of its proper divisors (1).

27307939 is an equidigital number, since it uses as much as digits as its factorization.

27307939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 71442, while the sum is 40.

The square root of 27307939 is about 5225.6998574354. The cubic root of 27307939 is about 301.1362061674.

The spelling of 27307939 in words is "twenty-seven million, three hundred seven thousand, nine hundred thirty-nine".