27327681 has 12 divisors (see below), whose sum is σ = 41551120. Its totient is φ = 17259480.

The previous prime is 27327673. The next prime is 27327683. The reversal of 27327681 is 18672372.

It is not a de Polignac number, because 27327681 - 2³ = 27327673 is a prime.

It is a super-2 number, since 2×27327681² = 1493604297675522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27327683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79735 + ... + 80076.

Almost surely, 2^27327681 is an apocalyptic number.

It is an amenable number.

27327681 is a deficient number, since it is larger than the sum of its proper divisors (14223439).

27327681 is a wasteful number, since it uses less digits than its factorization.

27327681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159836 (or 159833 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 27327681 is about 5227.5884497539. The cubic root of 27327681 is about 301.2087564847.

The spelling of 27327681 in words is "twenty-seven million, three hundred twenty-seven thousand, six hundred eighty-one".