27242239 has 2 divisors, whose sum is σ = 27242240. Its totient is φ = 27242238.

The previous prime is 27242233. The next prime is 27242269. The reversal of 27242239 is 93224272.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27242239 - 2³ = 27242231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27242239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27242231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13621119 + 13621120.

It is an arithmetic number, because the mean of its divisors is an integer number (13621120).

Almost surely, 2^27242239 is an apocalyptic number.

27242239 is a deficient number, since it is larger than the sum of its proper divisors (1).

27242239 is an equidigital number, since it uses as much as digits as its factorization.

27242239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 31.

The square root of 27242239 is about 5219.4098325385. The cubic root of 27242239 is about 300.8945116602.

The spelling of 27242239 in words is "twenty-seven million, two hundred forty-two thousand, two hundred thirty-nine".