27928284 has 24 divisors (see below), whose sum is σ = 65778048. Its totient is φ = 9222000.

The previous prime is 27928273. The next prime is 27928319. The reversal of 27928284 is 48282972.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9592 + ... + 12159.

It is an arithmetic number, because the mean of its divisors is an integer number (2740752).

Almost surely, 2^27928284 is an apocalyptic number.

It is an amenable number.

27928284 is an abundant number, since it is smaller than the sum of its proper divisors (37849764).

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

27928284 is a wasteful number, since it uses less digits than its factorization.

27928284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21865 (or 21863 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 27928284 is about 5284.7217523726. The cubic root of 27928284 is about 303.3994231338.

The spelling of 27928284 in words is "twenty-seven million, nine hundred twenty-eight thousand, two hundred eighty-four".