27243743 has 2 divisors, whose sum is σ = 27243744. Its totient is φ = 27243742.

The previous prime is 27243737. The next prime is 27243751. The reversal of 27243743 is 34734272.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27243743 - 2¹⁴ = 27227359 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 (27243763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13621871 + 13621872.

It is an arithmetic number, because the mean of its divisors is an integer number (13621872).

Almost surely, 2^27243743 is an apocalyptic number.

27243743 is a deficient number, since it is larger than the sum of its proper divisors (1).

27243743 is an equidigital number, since it uses as much as digits as its factorization.

27243743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 32.

The square root of 27243743 is about 5219.5539081420. The cubic root of 27243743 is about 300.9000488583.

The spelling of 27243743 in words is "twenty-seven million, two hundred forty-three thousand, seven hundred forty-three".