27943328 has 72 divisors (see below), whose sum is σ = 65155104. Its totient is φ = 11760000.

The previous prime is 27943303. The next prime is 27943337. The reversal of 27943328 is 82334972.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 27943291 and 27943300.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111203 + ... + 111453.

It is an arithmetic number, because the mean of its divisors is an integer number (904932).

Almost surely, 2^27943328 is an apocalyptic number.

27943328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27943328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32577552).

27943328 is an abundant number, since it is smaller than the sum of its proper divisors (37211776).

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

27943328 is a wasteful number, since it uses less digits than its factorization.

27943328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346 (or 331 counting only the distinct ones).

The product of its digits is 72576, while the sum is 38.

The square root of 27943328 is about 5286.1449090996. The cubic root of 27943328 is about 303.4538902780.

The spelling of 27943328 in words is "twenty-seven million, nine hundred forty-three thousand, three hundred twenty-eight".