27988468 has 6 divisors (see below), whose sum is σ = 48979826. Its totient is φ = 13994232.

The previous prime is 27988439. The next prime is 27988469. The reversal of 27988468 is 86488972.

It can be written as a sum of positive squares in only one way, i.e., 19820304 + 8168164 = 4452^2 + 2858^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27988469) by changing a digit.

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 as a sum of consecutive naturals, namely, 3498555 + ... + 3498562.

Almost surely, 2^27988468 is an apocalyptic number.

It is an amenable number.

27988468 is a deficient number, since it is larger than the sum of its proper divisors (20991358).

27988468 is a wasteful number, since it uses less digits than its factorization.

27988468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6997121 (or 6997119 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 52.

The square root of 27988468 is about 5290.4128383331. The cubic root of 27988468 is about 303.6172034345.

The spelling of 27988468 in words is "twenty-seven million, nine hundred eighty-eight thousand, four hundred sixty-eight".