27868956 has 24 divisors (see below), whose sum is σ = 65139984. Its totient is φ = 9273600.

The previous prime is 27868949. The next prime is 27868957. The reversal of 27868956 is 65986872.

It is a junction number, because it is equal to n+sod(n) for n = 27868899 and 27868908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27868957) 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, 6756 + ... + 10068.

It is an arithmetic number, because the mean of its divisors is an integer number (2714166).

Almost surely, 2^27868956 is an apocalyptic number.

It is an amenable number.

27868956 is an abundant number, since it is smaller than the sum of its proper divisors (37271028).

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

27868956 is a wasteful number, since it uses less digits than its factorization.

27868956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4021 (or 4019 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 51.

The square root of 27868956 is about 5279.1056060662. The cubic root of 27868956 is about 303.1844338910.

The spelling of 27868956 in words is "twenty-seven million, eight hundred sixty-eight thousand, nine hundred fifty-six".