27845412 has 96 divisors (see below), whose sum is σ = 79564800. Its totient is φ = 7402752.

The previous prime is 27845407. The next prime is 27845429. The reversal of 27845412 is 21454872.

27845412 is nontrivially palindromic in base 11.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116389 + ... + 116627.

It is an arithmetic number, because the mean of its divisors is an integer number (828800).

Almost surely, 2^27845412 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 27845412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39782400).

27845412 is an abundant number, since it is smaller than the sum of its proper divisors (51719388).

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

27845412 is a wasteful number, since it uses less digits than its factorization.

27845412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345 (or 343 counting only the distinct ones).

The product of its digits is 17920, while the sum is 33.

The square root of 27845412 is about 5276.8752117138. The cubic root of 27845412 is about 303.0990319909.

The spelling of 27845412 in words is "twenty-seven million, eight hundred forty-five thousand, four hundred twelve".