27313728 has 112 divisors (see below), whose sum is σ = 80564736. Its totient is φ = 8110080.

The previous prime is 27313717. The next prime is 27313751. The reversal of 27313728 is 82731372.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77200 + ... + 77552.

It is an arithmetic number, because the mean of its divisors is an integer number (719328).

Almost surely, 2^27313728 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 27313728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40282368).

27313728 is an abundant number, since it is smaller than the sum of its proper divisors (53251008).

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

27313728 is a wasteful number, since it uses less digits than its factorization.

27313728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412 (or 402 counting only the distinct ones).

The product of its digits is 14112, while the sum is 33.

The square root of 27313728 is about 5226.2537251840. The cubic root of 27313728 is about 301.1574839153.

The spelling of 27313728 in words is "twenty-seven million, three hundred thirteen thousand, seven hundred twenty-eight".