27844243 has 12 divisors (see below), whose sum is σ = 32382480. Its totient is φ = 23453280.

The previous prime is 27844241. The next prime is 27844247. The reversal of 27844243 is 34244872.

It is not a de Polignac number, because 27844243 - 2¹ = 27844241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27844199 and 27844208.

It is not an unprimeable number, because it can be changed into a prime (27844241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25513 + ... + 26581.

It is an arithmetic number, because the mean of its divisors is an integer number (2698540).

Almost surely, 2^27844243 is an apocalyptic number.

27844243 is a deficient number, since it is larger than the sum of its proper divisors (4538237).

27844243 is an equidigital number, since it uses as much as digits as its factorization.

27844243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198 (or 1137 counting only the distinct ones).

The product of its digits is 43008, while the sum is 34.

The square root of 27844243 is about 5276.7644442404. The cubic root of 27844243 is about 303.0947903858.

It can be divided in two parts, 278 and 44243, that added together give a square (44521 = 211²).

The spelling of 27844243 in words is "twenty-seven million, eight hundred forty-four thousand, two hundred forty-three".