27707328 has 84 divisors (see below), whose sum is σ = 86657688. Its totient is φ = 8394240.

The previous prime is 27707321. The next prime is 27707333. The reversal of 27707328 is 82370772.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 27707292 and 27707301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27707321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4150 + ... + 8522.

Almost surely, 2^27707328 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 27707328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43328844).

27707328 is an abundant number, since it is smaller than the sum of its proper divisors (58950360).

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

27707328 is a wasteful number, since it uses less digits than its factorization.

27707328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4402 (or 4389 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The square root of 27707328 is about 5263.7750711823. The cubic root of 27707328 is about 302.5971839009.

The spelling of 27707328 in words is "twenty-seven million, seven hundred seven thousand, three hundred twenty-eight".