27027009 has 24 divisors (see below), whose sum is σ = 40881152. Its totient is φ = 17184960.

The previous prime is 27026977. The next prime is 27027019. The reversal of 27027009 is 90072072.

It is not a de Polignac number, because 27027009 - 2⁵ = 27026977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27027019) 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 23 ways as a sum of consecutive naturals, for example, 19704 + ... + 21030.

Almost surely, 2^27027009 is an apocalyptic number.

It is an amenable number.

27027009 is a deficient number, since it is larger than the sum of its proper divisors (13854143).

27027009 is a wasteful number, since it uses less digits than its factorization.

27027009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1437 (or 1434 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 27027009 is about 5198.7507153161. The cubic root of 27027009 is about 300.0999999963.

The spelling of 27027009 in words is "twenty-seven million, twenty-seven thousand, nine".