12678912 has 54 divisors (see below), whose sum is σ = 36563072. Its totient is φ = 4225536.

The previous prime is 12678899. The next prime is 12678929. The reversal of 12678912 is 21987621.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 448 + ... + 5055.

Almost surely, 2^12678912 is an apocalyptic number.

12678912 is a gapful number since it is divisible by the number (12) 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 12678912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18281536).

12678912 is an abundant number, since it is smaller than the sum of its proper divisors (23884160).

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

12678912 is an equidigital number, since it uses as much as digits as its factorization.

12678912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5525 (or 5508 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 12678912 is about 3560.7459892556. The cubic root of 12678912 is about 233.1814485466.

The spelling of 12678912 in words is "twelve million, six hundred seventy-eight thousand, nine hundred twelve".