12830643 has 48 divisors (see below), whose sum is σ = 23179520. Its totient is φ = 6928416.

The previous prime is 12830639. The next prime is 12830651. The reversal of 12830643 is 34603821.

It is a happy number.

12830643 is a `hidden beast` number, since 12 + 8 + 3 + 0 + 643 = 666.

It is not a de Polignac number, because 12830643 - 2² = 12830639 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12830633) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32121 + ... + 32517.

Almost surely, 2^12830643 is an apocalyptic number.

12830643 is a deficient number, since it is larger than the sum of its proper divisors (10348877).

12830643 is an equidigital number, since it uses as much as digits as its factorization.

12830643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 426 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 12830643 is about 3581.9886934495. The cubic root of 12830643 is about 234.1079383687.

The spelling of 12830643 in words is "twelve million, eight hundred thirty thousand, six hundred forty-three".