27381856 has 12 divisors (see below), whose sum is σ = 53908092. Its totient is φ = 13690912.

The previous prime is 27381853. The next prime is 27381859. The reversal of 27381856 is 65818372.

It is an interprime number because it is at equal distance from previous prime (27381853) and next prime (27381859).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27381853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427810 + ... + 427873.

It is an arithmetic number, because the mean of its divisors is an integer number (4492341).

Almost surely, 2^27381856 is an apocalyptic number.

It is an amenable number.

27381856 is a deficient number, since it is larger than the sum of its proper divisors (26526236).

27381856 is an equidigital number, since it uses as much as digits as its factorization.

27381856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855693 (or 855685 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 27381856 is about 5232.7675278002. The cubic root of 27381856 is about 301.4076660714.

The spelling of 27381856 in words is "twenty-seven million, three hundred eighty-one thousand, eight hundred fifty-six".