27443668 has 12 divisors (see below), whose sum is σ = 54887392. Its totient is φ = 11761560.

The previous prime is 27443659. The next prime is 27443671. The reversal of 27443668 is 86634472.

It is a happy number.

27443668 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 27443668.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 490038 + ... + 490093.

Almost surely, 2^27443668 is an apocalyptic number.

27443668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

27443668 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

27443668 is a wasteful number, since it uses less digits than its factorization.

27443668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980142 (or 980140 counting only the distinct ones).

The product of its digits is 193536, while the sum is 40.

The square root of 27443668 is about 5238.6704420110. The cubic root of 27443668 is about 301.6342955745.

The spelling of 27443668 in words is "twenty-seven million, four hundred forty-three thousand, six hundred sixty-eight".