27868427 has 2 divisors, whose sum is σ = 27868428. Its totient is φ = 27868426.

The previous prime is 27868369. The next prime is 27868439. The reversal of 27868427 is 72486872.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27868427 is a prime.

It is not a weakly prime, because it can be changed into another prime (27868447) 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, 13934213 + 13934214.

It is an arithmetic number, because the mean of its divisors is an integer number (13934214).

Almost surely, 2^27868427 is an apocalyptic number.

27868427 is a deficient number, since it is larger than the sum of its proper divisors (1).

27868427 is an equidigital number, since it uses as much as digits as its factorization.

27868427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 301056, while the sum is 44.

The square root of 27868427 is about 5279.0555026444. The cubic root of 27868427 is about 303.1825155608.

The spelling of 27868427 in words is "twenty-seven million, eight hundred sixty-eight thousand, four hundred twenty-seven".