27690944 has 28 divisors (see below), whose sum is σ = 55711344. Its totient is φ = 13653504.

The previous prime is 27690941. The next prime is 27690959. The reversal of 27690944 is 44909672.

It is a super-2 number, since 2×27690944² = 1533576759222272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27690941) 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 3 ways as a sum of consecutive naturals, for example, 1709 + ... + 7635.

Almost surely, 2^27690944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27690944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27855672).

27690944 is an abundant number, since it is smaller than the sum of its proper divisors (28020400).

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

27690944 is an equidigital number, since it uses as much as digits as its factorization.

27690944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6012 (or 6002 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 27690944 is about 5262.2185435423. The cubic root of 27690944 is about 302.5375278442.

The spelling of 27690944 in words is "twenty-seven million, six hundred ninety thousand, nine hundred forty-four".