27855428 has 24 divisors (see below), whose sum is σ = 50635200. Its totient is φ = 13392288.

The previous prime is 27855427. The next prime is 27855431. The reversal of 27855428 is 82455872.

It is not an unprimeable number, because it can be changed into a prime (27855427) 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, 50651 + ... + 51197.

It is an arithmetic number, because the mean of its divisors is an integer number (2109800).

Almost surely, 2^27855428 is an apocalyptic number.

It is an amenable number.

27855428 is a deficient number, since it is larger than the sum of its proper divisors (22779772).

27855428 is a wasteful number, since it uses less digits than its factorization.

27855428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019 (or 1017 counting only the distinct ones).

The product of its digits is 179200, while the sum is 41.

The square root of 27855428 is about 5277.8241728955. The cubic root of 27855428 is about 303.1353692276.

The spelling of 27855428 in words is "twenty-seven million, eight hundred fifty-five thousand, four hundred twenty-eight".