27688332 has 90 divisors (see below), whose sum is σ = 77879004. Its totient is φ = 7655760.

The previous prime is 27688303. The next prime is 27688333. The reversal of 27688332 is 23388672.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (27688333) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 893157 + ... + 893187.

Almost surely, 2^27688332 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 27688332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38939502).

27688332 is an abundant number, since it is smaller than the sum of its proper divisors (50190672).

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

27688332 is an equidigital number, since it uses as much as digits as its factorization.

27688332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 43 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 27688332 is about 5261.9703533942. The cubic root of 27688332 is about 302.5280150727.

The spelling of 27688332 in words is "twenty-seven million, six hundred eighty-eight thousand, three hundred thirty-two".