27930671 has 12 divisors (see below), whose sum is σ = 30007992. Its totient is φ = 25976016.

The previous prime is 27930667. The next prime is 27930673. The reversal of 27930671 is 17603972.

It is not a de Polignac number, because 27930671 - 2² = 27930667 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27930673) 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, 18860 + ... + 20286.

It is an arithmetic number, because the mean of its divisors is an integer number (2500666).

Almost surely, 2^27930671 is an apocalyptic number.

27930671 is a deficient number, since it is larger than the sum of its proper divisors (2077321).

27930671 is a wasteful number, since it uses less digits than its factorization.

27930671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510 (or 1487 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 27930671 is about 5284.9475872519. The cubic root of 27930671 is about 303.4080666269.

The spelling of 27930671 in words is "twenty-seven million, nine hundred thirty thousand, six hundred seventy-one".