27974719 has 2 divisors, whose sum is σ = 27974720. Its totient is φ = 27974718.

The previous prime is 27974717. The next prime is 27974743. The reversal of 27974719 is 91747972.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27974719 - 2¹ = 27974717 is a prime.

It is a super-2 number, since 2×27974719² = 1565169806257922, which contains 22 as substring.

Together with 27974717, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27974717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13987359 + 13987360.

It is an arithmetic number, because the mean of its divisors is an integer number (13987360).

Almost surely, 2^27974719 is an apocalyptic number.

27974719 is a deficient number, since it is larger than the sum of its proper divisors (1).

27974719 is an equidigital number, since it uses as much as digits as its factorization.

27974719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 222264, while the sum is 46.

The square root of 27974719 is about 5289.1132527107. The cubic root of 27974719 is about 303.5674791854.

The spelling of 27974719 in words is "twenty-seven million, nine hundred seventy-four thousand, seven hundred nineteen".