27279385 has 16 divisors (see below), whose sum is σ = 37973376. Its totient is φ = 18425088.

The previous prime is 27279379. The next prime is 27279389. The reversal of 27279385 is 58397272.

It is a cyclic number.

It is not a de Polignac number, because 27279385 - 2³ = 27279377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27279389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3472 + ... + 8161.

It is an arithmetic number, because the mean of its divisors is an integer number (2373336).

Almost surely, 2^27279385 is an apocalyptic number.

It is an amenable number.

27279385 is a deficient number, since it is larger than the sum of its proper divisors (10693991).

27279385 is a wasteful number, since it uses less digits than its factorization.

27279385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11712.

The product of its digits is 211680, while the sum is 43.

The square root of 27279385 is about 5222.9670686306. The cubic root of 27279385 is about 301.0312105472.

The spelling of 27279385 in words is "twenty-seven million, two hundred seventy-nine thousand, three hundred eighty-five".