27379889 has 8 divisors (see below), whose sum is σ = 28201320. Its totient is φ = 26562816.

The previous prime is 27379873. The next prime is 27379901. The reversal of 27379889 is 98897372.

It can be written as a sum of positive squares in 4 ways, for example, as 1420864 + 25959025 = 1192^2 + 5095^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27379889 - 2⁴ = 27379873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27379889.

It is not an unprimeable number, because it can be changed into a prime (27379189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15167 + ... + 16875.

It is an arithmetic number, because the mean of its divisors is an integer number (3525165).

Almost surely, 2^27379889 is an apocalyptic number.

It is an amenable number.

27379889 is a deficient number, since it is larger than the sum of its proper divisors (821431).

27379889 is a wasteful number, since it uses less digits than its factorization.

27379889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2179.

The product of its digits is 1524096, while the sum is 53.

The square root of 27379889 is about 5232.5795741680. The cubic root of 27379889 is about 301.4004486026.

The spelling of 27379889 in words is "twenty-seven million, three hundred seventy-nine thousand, eight hundred eighty-nine".