27279427 has 6 divisors (see below), whose sum is σ = 31733268. Its totient is φ = 23382324.

The previous prime is 27279389. The next prime is 27279451. The reversal of 27279427 is 72497272.

It is not a de Polignac number, because 27279427 - 2²³ = 18890819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27279427.

It is not an unprimeable number, because it can be changed into a prime (27279457) 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 5 ways as a sum of consecutive naturals, for example, 278313 + ... + 278410.

It is an arithmetic number, because the mean of its divisors is an integer number (5288878).

Almost surely, 2^27279427 is an apocalyptic number.

27279427 is a deficient number, since it is larger than the sum of its proper divisors (4453841).

27279427 is an equidigital number, since it uses as much as digits as its factorization.

27279427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556737 (or 556730 counting only the distinct ones).

The product of its digits is 98784, while the sum is 40.

The square root of 27279427 is about 5222.9710893322. The cubic root of 27279427 is about 301.0313650388.

The spelling of 27279427 in words is "twenty-seven million, two hundred seventy-nine thousand, four hundred twenty-seven".