27242879 has 4 divisors (see below), whose sum is σ = 28427376. Its totient is φ = 26058384.

The previous prime is 27242869. The next prime is 27242911. The reversal of 27242879 is 97824272.

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

It is a cyclic number.

It is not a de Polignac number, because 27242879 - 2⁴ = 27242863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27242849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 592214 + ... + 592259.

It is an arithmetic number, because the mean of its divisors is an integer number (7106844).

Almost surely, 2^27242879 is an apocalyptic number.

27242879 is a deficient number, since it is larger than the sum of its proper divisors (1184497).

27242879 is a wasteful number, since it uses less digits than its factorization.

27242879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184496.

The product of its digits is 112896, while the sum is 41.

The square root of 27242879 is about 5219.4711417920. The cubic root of 27242879 is about 300.8968679396.

The spelling of 27242879 in words is "twenty-seven million, two hundred forty-two thousand, eight hundred seventy-nine".