27890156 has 24 divisors (see below), whose sum is σ = 57290016. Its totient is φ = 11629440.

The previous prime is 27890147. The next prime is 27890167. The reversal of 27890156 is 65109872.

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, 12425 + ... + 14496.

It is an arithmetic number, because the mean of its divisors is an integer number (2387084).

Almost surely, 2^27890156 is an apocalyptic number.

It is an amenable number.

27890156 is an abundant number, since it is smaller than the sum of its proper divisors (29399860).

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

27890156 is a wasteful number, since it uses less digits than its factorization.

27890156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26969 (or 26967 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 27890156 is about 5281.1131402385. The cubic root of 27890156 is about 303.2612921807.

The spelling of 27890156 in words is "twenty-seven million, eight hundred ninety thousand, one hundred fifty-six".