27966156 has 24 divisors (see below), whose sum is σ = 69093360. Its totient is φ = 8773632.

The previous prime is 27966143. The next prime is 27966161. The reversal of 27966156 is 65166972.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68341 + ... + 68748.

It is an arithmetic number, because the mean of its divisors is an integer number (2878890).

Almost surely, 2^27966156 is an apocalyptic number.

It is an amenable number.

27966156 is an abundant number, since it is smaller than the sum of its proper divisors (41127204).

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

27966156 is a wasteful number, since it uses less digits than its factorization.

27966156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137113 (or 137111 counting only the distinct ones).

The product of its digits is 136080, while the sum is 42.

The square root of 27966156 is about 5288.3036977844. The cubic root of 27966156 is about 303.5365022451.

The spelling of 27966156 in words is "twenty-seven million, nine hundred sixty-six thousand, one hundred fifty-six".