27845243 has 2 divisors, whose sum is σ = 27845244. Its totient is φ = 27845242.

The previous prime is 27845231. The next prime is 27845263. The reversal of 27845243 is 34254872.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27845243 - 2¹⁶ = 27779707 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27845263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13922621 + 13922622.

It is an arithmetic number, because the mean of its divisors is an integer number (13922622).

Almost surely, 2^27845243 is an apocalyptic number.

27845243 is a deficient number, since it is larger than the sum of its proper divisors (1).

27845243 is an equidigital number, since it uses as much as digits as its factorization.

27845243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53760, while the sum is 35.

The square root of 27845243 is about 5276.8591984248. The cubic root of 27845243 is about 303.0984187979.

The spelling of 27845243 in words is "twenty-seven million, eight hundred forty-five thousand, two hundred forty-three".