27955856 has 20 divisors (see below), whose sum is σ = 56520192. Its totient is φ = 13370016.

The previous prime is 27955849. The next prime is 27955867. The reversal of 27955856 is 65855972.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 27955856.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37616 + ... + 38351.

Almost surely, 2^27955856 is an apocalyptic number.

It is an amenable number.

27955856 is an abundant number, since it is smaller than the sum of its proper divisors (28564336).

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

27955856 is a wasteful number, since it uses less digits than its factorization.

27955856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75998 (or 75992 counting only the distinct ones).

The product of its digits is 756000, while the sum is 47.

The square root of 27955856 is about 5287.3297608528. The cubic root of 27955856 is about 303.4992332705.

The spelling of 27955856 in words is "twenty-seven million, nine hundred fifty-five thousand, eight hundred fifty-six".