27942241 has 2 divisors, whose sum is σ = 27942242. Its totient is φ = 27942240.

The previous prime is 27942193. The next prime is 27942247. The reversal of 27942241 is 14224972.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19989841 + 7952400 = 4471^2 + 2820^2 .

It is a cyclic number.

It is not a de Polignac number, because 27942241 - 2¹⁹ = 27417953 is a prime.

It is not a weakly prime, because it can be changed into another prime (27942247) 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, 13971120 + 13971121.

It is an arithmetic number, because the mean of its divisors is an integer number (13971121).

Almost surely, 2^27942241 is an apocalyptic number.

It is an amenable number.

27942241 is a deficient number, since it is larger than the sum of its proper divisors (1).

27942241 is an equidigital number, since it uses as much as digits as its factorization.

27942241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 31.

The square root of 27942241 is about 5286.0420921517. The cubic root of 27942241 is about 303.4499554251.

The spelling of 27942241 in words is "twenty-seven million, nine hundred forty-two thousand, two hundred forty-one".