27244991 has 2 divisors, whose sum is σ = 27244992. Its totient is φ = 27244990.

The previous prime is 27244963. The next prime is 27245011. The reversal of 27244991 is 19944272.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27244991 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27244291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13622495 + 13622496.

It is an arithmetic number, because the mean of its divisors is an integer number (13622496).

Almost surely, 2^27244991 is an apocalyptic number.

27244991 is a deficient number, since it is larger than the sum of its proper divisors (1).

27244991 is an equidigital number, since it uses as much as digits as its factorization.

27244991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 38.

The square root of 27244991 is about 5219.6734572193. The cubic root of 27244991 is about 300.9046433998.

The spelling of 27244991 in words is "twenty-seven million, two hundred forty-four thousand, nine hundred ninety-one".