27347939 has 2 divisors, whose sum is σ = 27347940. Its totient is φ = 27347938.

The previous prime is 27347927. The next prime is 27347941. The reversal of 27347939 is 93974372.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27347939 - 2⁴ = 27347923 is a prime.

Together with 27347941, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27347939.

It is not a weakly prime, because it can be changed into another prime (27347959) 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, 13673969 + 13673970.

It is an arithmetic number, because the mean of its divisors is an integer number (13673970).

Almost surely, 2^27347939 is an apocalyptic number.

27347939 is a deficient number, since it is larger than the sum of its proper divisors (1).

27347939 is an equidigital number, since it uses as much as digits as its factorization.

27347939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 285768, while the sum is 44.

The square root of 27347939 is about 5229.5256955101. The cubic root of 27347939 is about 301.2831667483.

The spelling of 27347939 in words is "twenty-seven million, three hundred forty-seven thousand, nine hundred thirty-nine".