27927966 has 32 divisors (see below), whose sum is σ = 61152768. Its totient is φ = 8432640.

The previous prime is 27927961. The next prime is 27927973. The reversal of 27927966 is 66972972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27927961) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 23646 + ... + 24798.

It is an arithmetic number, because the mean of its divisors is an integer number (1911024).

Almost surely, 2^27927966 is an apocalyptic number.

27927966 is an abundant number, since it is smaller than the sum of its proper divisors (33224802).

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

27927966 is a wasteful number, since it uses less digits than its factorization.

27927966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1536.

The product of its digits is 571536, while the sum is 48.

The square root of 27927966 is about 5284.6916655563. The cubic root of 27927966 is about 303.3982715965.

The spelling of 27927966 in words is "twenty-seven million, nine hundred twenty-seven thousand, nine hundred sixty-six".