12430839 has 4 divisors (see below), whose sum is σ = 16574456. Its totient is φ = 8287224.

The previous prime is 12430837. The next prime is 12430849. The reversal of 12430839 is 93803421.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12430839 - 2¹ = 12430837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12430837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2071804 + ... + 2071809.

It is an arithmetic number, because the mean of its divisors is an integer number (4143614).

Almost surely, 2^12430839 is an apocalyptic number.

12430839 is a deficient number, since it is larger than the sum of its proper divisors (4143617).

12430839 is an equidigital number, since it uses as much as digits as its factorization.

12430839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4143616.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 12430839 is about 3525.7394968999. The cubic root of 12430839 is about 231.6506272789.

The spelling of 12430839 in words is "twelve million, four hundred thirty thousand, eight hundred thirty-nine".