27328512 has 68 divisors (see below), whose sum is σ = 73399760. Its totient is φ = 9043968.

The previous prime is 27328507. The next prime is 27328513. The reversal of 27328512 is 21582372.

It is a self number, because there is not a number n which added to its sum of digits gives 27328512.

It is not an unprimeable number, because it can be changed into a prime (27328513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196539 + ... + 196677.

Almost surely, 2^27328512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27328512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36699880).

27328512 is an abundant number, since it is smaller than the sum of its proper divisors (46071248).

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

27328512 is an frugal number, since it uses more digits than its factorization.

27328512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174 (or 144 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 27328512 is about 5227.6679313055. The cubic root of 27328512 is about 301.2118095788.

The spelling of 27328512 in words is "twenty-seven million, three hundred twenty-eight thousand, five hundred twelve".