27910656 has 100 divisors (see below), whose sum is σ = 83429742. Its totient is φ = 9289728.

The previous prime is 27910637. The next prime is 27910681. The reversal of 27910656 is 65601972.

It can be written as a sum of positive squares in only one way, i.e., 25401600 + 2509056 = 5040^2 + 1584^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 27910656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 41136 + ... + 41808.

Almost surely, 2^27910656 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 27910656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41714871).

27910656 is an abundant number, since it is smaller than the sum of its proper divisors (55519086).

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

27910656 is an frugal number, since it uses more digits than its factorization.

27910656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703 (or 678 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 27910656 is about 5283.0536624191. The cubic root of 27910656 is about 303.3355756654.

The spelling of 27910656 in words is "twenty-seven million, nine hundred ten thousand, six hundred fifty-six".