27088864 has 48 divisors (see below), whose sum is σ = 59630256. Its totient is φ = 12006400.

The previous prime is 27088861. The next prime is 27088877. The reversal of 27088864 is 46888072.

It is a self number, because there is not a number n which added to its sum of digits gives 27088864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27088861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13494 + ... + 15370.

It is an arithmetic number, because the mean of its divisors is an integer number (1242297).

Almost surely, 2^27088864 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 27088864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29815128).

27088864 is an abundant number, since it is smaller than the sum of its proper divisors (32541392).

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

27088864 is a wasteful number, since it uses less digits than its factorization.

27088864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1939 (or 1931 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 43.

The square root of 27088864 is about 5204.6963408061. The cubic root of 27088864 is about 300.3287655051.

The spelling of 27088864 in words is "twenty-seven million, eighty-eight thousand, eight hundred sixty-four".