12930638 has 8 divisors (see below), whose sum is σ = 22166832. Its totient is φ = 5541696.

The previous prime is 12930581. The next prime is 12930647. The reversal of 12930638 is 83603921.

12930638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461795 + ... + 461822.

It is an arithmetic number, because the mean of its divisors is an integer number (2770854).

Almost surely, 2^12930638 is an apocalyptic number.

12930638 is a deficient number, since it is larger than the sum of its proper divisors (9236194).

12930638 is an equidigital number, since it uses as much as digits as its factorization.

12930638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923626.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 12930638 is about 3595.9196320274. The cubic root of 12930638 is about 234.7145349183.

The spelling of 12930638 in words is "twelve million, nine hundred thirty thousand, six hundred thirty-eight".