12830639 has 2 divisors, whose sum is σ = 12830640. Its totient is φ = 12830638.

The previous prime is 12830633. The next prime is 12830651. The reversal of 12830639 is 93603821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12830639 - 2¹² = 12826543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12830633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6415319 + 6415320.

It is an arithmetic number, because the mean of its divisors is an integer number (6415320).

Almost surely, 2^12830639 is an apocalyptic number.

12830639 is a deficient number, since it is larger than the sum of its proper divisors (1).

12830639 is an equidigital number, since it uses as much as digits as its factorization.

12830639 is an odious number, because the sum of its binary digits is odd.

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

The square root of 12830639 is about 3581.9881351004. The cubic root of 12830639 is about 234.1079140407.

The spelling of 12830639 in words is "twelve million, eight hundred thirty thousand, six hundred thirty-nine".