27000839 has 2 divisors, whose sum is σ = 27000840. Its totient is φ = 27000838.

The previous prime is 27000833. The next prime is 27000851. The reversal of 27000839 is 93800072.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27000839 is a prime.

It is a Chen prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27000833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13500419 + 13500420.

It is an arithmetic number, because the mean of its divisors is an integer number (13500420).

Almost surely, 2^27000839 is an apocalyptic number.

27000839 is a deficient number, since it is larger than the sum of its proper divisors (1).

27000839 is an equidigital number, since it uses as much as digits as its factorization.

27000839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 27000839 is about 5196.2331548921. The cubic root of 27000839 is about 300.0031073752.

The spelling of 27000839 in words is "twenty-seven million, eight hundred thirty-nine", and thus it is an aban number.