27928146 has 16 divisors (see below), whose sum is σ = 56690784. Its totient is φ = 9170304.

The previous prime is 27928139. The next prime is 27928151. The reversal of 27928146 is 64182972.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34335 + ... + 35138.

It is an arithmetic number, because the mean of its divisors is an integer number (3543174).

Almost surely, 2^27928146 is an apocalyptic number.

27928146 is an abundant number, since it is smaller than the sum of its proper divisors (28762638).

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

27928146 is a wasteful number, since it uses less digits than its factorization.

27928146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69545.

The product of its digits is 48384, while the sum is 39.

The square root of 27928146 is about 5284.7086958507. The cubic root of 27928146 is about 303.3989234111.

The spelling of 27928146 in words is "twenty-seven million, nine hundred twenty-eight thousand, one hundred forty-six".