27787996 has 24 divisors (see below), whose sum is σ = 52750656. Its totient is φ = 12756480.

The previous prime is 27787987. The next prime is 27788011. The reversal of 27787996 is 69978772.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2196 + ... + 7771.

It is an arithmetic number, because the mean of its divisors is an integer number (2197944).

Almost surely, 2^27787996 is an apocalyptic number.

It is an amenable number.

27787996 is a deficient number, since it is larger than the sum of its proper divisors (24962660).

27787996 is a wasteful number, since it uses less digits than its factorization.

27787996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10029 (or 10027 counting only the distinct ones).

The product of its digits is 2667168, while the sum is 55.

The square root of 27787996 is about 5271.4320634909. The cubic root of 27787996 is about 302.8905630702.

The spelling of 27787996 in words is "twenty-seven million, seven hundred eighty-seven thousand, nine hundred ninety-six".