27128768 has 14 divisors (see below), whose sum is σ = 53833776. Its totient is φ = 13564352.

The previous prime is 27128767. The next prime is 27128779. The reversal of 27128768 is 86782172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27128767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211880 + ... + 212007.

Almost surely, 2^27128768 is an apocalyptic number.

It is an amenable number.

27128768 is a deficient number, since it is larger than the sum of its proper divisors (26705008).

27128768 is an equidigital number, since it uses as much as digits as its factorization.

27128768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423899 (or 423889 counting only the distinct ones).

The product of its digits is 75264, while the sum is 41.

The square root of 27128768 is about 5208.5283910141. The cubic root of 27128768 is about 300.4761623501.

The spelling of 27128768 in words is "twenty-seven million, one hundred twenty-eight thousand, seven hundred sixty-eight".