12930678 has 40 divisors (see below), whose sum is σ = 30506520. Its totient is φ = 4082400.

The previous prime is 12930661. The next prime is 12930691. The reversal of 12930678 is 87603921.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 978 + ... + 5178.

It is an arithmetic number, because the mean of its divisors is an integer number (762663).

Almost surely, 2^12930678 is an apocalyptic number.

12930678 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12930678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15253260).

12930678 is an abundant number, since it is smaller than the sum of its proper divisors (17575842).

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

12930678 is a wasteful number, since it uses less digits than its factorization.

12930678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4234 (or 4225 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 12930678 is about 3595.9251938827. The cubic root of 12930678 is about 234.7147769423.

The spelling of 12930678 in words is "twelve million, nine hundred thirty thousand, six hundred seventy-eight".