27807996 has 24 divisors (see below), whose sum is σ = 65044224. Its totient is φ = 9246640.

The previous prime is 27807991. The next prime is 27808003. The reversal of 27807996 is 69970872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27807991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2701 + ... + 7931.

It is an arithmetic number, because the mean of its divisors is an integer number (2710176).

Almost surely, 2^27807996 is an apocalyptic number.

It is an amenable number.

27807996 is an abundant number, since it is smaller than the sum of its proper divisors (37236228).

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

27807996 is a wasteful number, since it uses less digits than its factorization.

27807996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5681 (or 5679 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 27807996 is about 5273.3287399896. The cubic root of 27807996 is about 302.9632126476.

The spelling of 27807996 in words is "twenty-seven million, eight hundred seven thousand, nine hundred ninety-six".