27987282 has 24 divisors (see below), whose sum is σ = 62886096. Its totient is φ = 9328932.

The previous prime is 27987259. The next prime is 27987283. The reversal of 27987282 is 28278972.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (27987283) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28308 + ... + 29279.

It is an arithmetic number, because the mean of its divisors is an integer number (2620254).

Almost surely, 2^27987282 is an apocalyptic number.

27987282 is an abundant number, since it is smaller than the sum of its proper divisors (34898814).

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

27987282 is an equidigital number, since it uses as much as digits as its factorization.

27987282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57604 (or 57592 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 27987282 is about 5290.3007475946. The cubic root of 27987282 is about 303.6129148219.

The spelling of 27987282 in words is "twenty-seven million, nine hundred eighty-seven thousand, two hundred eighty-two".