12328784 has 20 divisors (see below), whose sum is σ = 25724916. Its totient is φ = 5690112.

The previous prime is 12328781. The next prime is 12328829. The reversal of 12328784 is 48782321.

12328784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4080400 + 8248384 = 2020^2 + 2872^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12328781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29429 + ... + 29844.

Almost surely, 2^12328784 is an apocalyptic number.

It is an amenable number.

12328784 is an abundant number, since it is smaller than the sum of its proper divisors (13396132).

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

12328784 is a wasteful number, since it uses less digits than its factorization.

12328784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59294 (or 59288 counting only the distinct ones).

The product of its digits is 21504, while the sum is 35.

The square root of 12328784 is about 3511.2368191280. The cubic root of 12328784 is about 231.0149475282.

The spelling of 12328784 in words is "twelve million, three hundred twenty-eight thousand, seven hundred eighty-four".