27831056 has 40 divisors (see below), whose sum is σ = 60734208. Its totient is φ = 12240000.

The previous prime is 27831053. The next prime is 27831071. The reversal of 27831056 is 65013872.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (27831053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2906 + ... + 8006.

Almost surely, 2^27831056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27831056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30367104).

27831056 is an abundant number, since it is smaller than the sum of its proper divisors (32903152).

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

27831056 is a wasteful number, since it uses less digits than its factorization.

27831056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5151 (or 5145 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 27831056 is about 5275.5147616133. The cubic root of 27831056 is about 303.0469343874.

The spelling of 27831056 in words is "twenty-seven million, eight hundred thirty-one thousand, fifty-six".