27984668 has 6 divisors (see below), whose sum is σ = 48973176. Its totient is φ = 13992332.

The previous prime is 27984667. The next prime is 27984707. The reversal of 27984668 is 86648972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27984667) by changing a digit.

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 as a sum of consecutive naturals, namely, 3498080 + ... + 3498087.

It is an arithmetic number, because the mean of its divisors is an integer number (8162196).

Almost surely, 2^27984668 is an apocalyptic number.

It is an amenable number.

27984668 is a deficient number, since it is larger than the sum of its proper divisors (20988508).

27984668 is a wasteful number, since it uses less digits than its factorization.

27984668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6996171 (or 6996169 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 50.

The square root of 27984668 is about 5290.0536859280. The cubic root of 27984668 is about 303.6034620894.

The spelling of 27984668 in words is "twenty-seven million, nine hundred eighty-four thousand, six hundred sixty-eight".