27842243 has 24 divisors (see below), whose sum is σ = 34863696. Its totient is φ = 21964800.

The previous prime is 27842237. The next prime is 27842249. The reversal of 27842243 is 34224872.

It is an interprime number because it is at equal distance from previous prime (27842237) and next prime (27842249).

It is not a de Polignac number, because 27842243 - 2¹⁸ = 27580099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27842249) 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 in 23 ways as a sum of consecutive naturals, for example, 31163 + ... + 32043.

It is an arithmetic number, because the mean of its divisors is an integer number (1452654).

Almost surely, 2^27842243 is an apocalyptic number.

27842243 is a deficient number, since it is larger than the sum of its proper divisors (7021453).

27842243 is a wasteful number, since it uses less digits than its factorization.

27842243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935 (or 922 counting only the distinct ones).

The product of its digits is 21504, while the sum is 32.

The square root of 27842243 is about 5276.5749307671. The cubic root of 27842243 is about 303.0875333010.

The spelling of 27842243 in words is "twenty-seven million, eight hundred forty-two thousand, two hundred forty-three".