27379609 has 4 divisors (see below), whose sum is σ = 27410704. Its totient is φ = 27348516.

The previous prime is 27379579. The next prime is 27379621. The reversal of 27379609 is 90697372.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27379609 - 2⁵ = 27379577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27379669) 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, 14187 + ... + 16000.

It is an arithmetic number, because the mean of its divisors is an integer number (6852676).

Almost surely, 2^27379609 is an apocalyptic number.

It is an amenable number.

27379609 is a deficient number, since it is larger than the sum of its proper divisors (31095).

27379609 is an equidigital number, since it uses as much as digits as its factorization.

27379609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31094.

The product of its (nonzero) digits is 142884, while the sum is 43.

The square root of 27379609 is about 5232.5528186536. The cubic root of 27379609 is about 301.3994211768.

The spelling of 27379609 in words is "twenty-seven million, three hundred seventy-nine thousand, six hundred nine".