27039906 has 40 divisors (see below), whose sum is σ = 61349904. Its totient is φ = 8900280.

The previous prime is 27039871. The next prime is 27039913. The reversal of 27039906 is 60993072.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 12441 + ... + 14451.

Almost surely, 2^27039906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27039906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30674952).

27039906 is an abundant number, since it is smaller than the sum of its proper divisors (34309998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27039906 is a wasteful number, since it uses less digits than its factorization.

27039906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2108 (or 2099 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 27039906 is about 5199.9909615306. The cubic root of 27039906 is about 300.1477272436.

The spelling of 27039906 in words is "twenty-seven million, thirty-nine thousand, nine hundred six".