27944849 has 4 divisors (see below), whose sum is σ = 28148964. Its totient is φ = 27740736.

The previous prime is 27944783. The next prime is 27944867. The reversal of 27944849 is 94844972.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23668225 + 4276624 = 4865^2 + 2068^2 .

It is a cyclic number.

It is not a de Polignac number, because 27944849 - 2²⁴ = 11167633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27944899) 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 3 ways as a sum of consecutive naturals, for example, 101852 + ... + 102125.

It is an arithmetic number, because the mean of its divisors is an integer number (7037241).

Almost surely, 2^27944849 is an apocalyptic number.

It is an amenable number.

27944849 is a deficient number, since it is larger than the sum of its proper divisors (204115).

27944849 is a wasteful number, since it uses less digits than its factorization.

27944849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204114.

The product of its digits is 580608, while the sum is 47.

The square root of 27944849 is about 5286.2887737996. The cubic root of 27944849 is about 303.4593960048.

The spelling of 27944849 in words is "twenty-seven million, nine hundred forty-four thousand, eight hundred forty-nine".