27474939 has 12 divisors (see below), whose sum is σ = 39977496. Its totient is φ = 18182112.

The previous prime is 27474917. The next prime is 27474947. The reversal of 27474939 is 93947472.

It is not a de Polignac number, because 27474939 - 2⁹ = 27474427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27474894 and 27474903.

It is not an unprimeable number, because it can be changed into a prime (27474989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9909 + ... + 12374.

It is an arithmetic number, because the mean of its divisors is an integer number (3331458).

Almost surely, 2^27474939 is an apocalyptic number.

27474939 is a deficient number, since it is larger than the sum of its proper divisors (12502557).

27474939 is a wasteful number, since it uses less digits than its factorization.

27474939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22426 (or 22423 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 27474939 is about 5241.6542236206. The cubic root of 27474939 is about 301.7488189647.

The spelling of 27474939 in words is "twenty-seven million, four hundred seventy-four thousand, nine hundred thirty-nine".