27140579 has 4 divisors (see below), whose sum is σ = 27156984. Its totient is φ = 27124176.

The previous prime is 27140567. The next prime is 27140609. The reversal of 27140579 is 97504172.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27140579 is a prime.

It is a super-2 number, since 2×27140579² = 1473222056910482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27146579) 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, 5402 + ... + 9135.

It is an arithmetic number, because the mean of its divisors is an integer number (6789246).

Almost surely, 2^27140579 is an apocalyptic number.

27140579 is a deficient number, since it is larger than the sum of its proper divisors (16405).

27140579 is a wasteful number, since it uses less digits than its factorization.

27140579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16404.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 27140579 is about 5209.6620811719. The cubic root of 27140579 is about 300.5197619347.

The spelling of 27140579 in words is "twenty-seven million, one hundred forty thousand, five hundred seventy-nine".