27855472 has 20 divisors (see below), whose sum is σ = 54070200. Its totient is φ = 13901888.

The previous prime is 27855449. The next prime is 27855473. The reversal of 27855472 is 27455872.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27855473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9654 + ... + 12202.

It is an arithmetic number, because the mean of its divisors is an integer number (2703510).

Almost surely, 2^27855472 is an apocalyptic number.

It is an amenable number.

27855472 is a deficient number, since it is larger than the sum of its proper divisors (26214728).

27855472 is a wasteful number, since it uses less digits than its factorization.

27855472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3240 (or 3234 counting only the distinct ones).

The product of its digits is 156800, while the sum is 40.

The square root of 27855472 is about 5277.8283412783. The cubic root of 27855472 is about 303.1355288368.

The spelling of 27855472 in words is "twenty-seven million, eight hundred fifty-five thousand, four hundred seventy-two".