12862389 has 4 divisors (see below), whose sum is σ = 17149856. Its totient is φ = 8574924.

The previous prime is 12862357. The next prime is 12862393. The reversal of 12862389 is 98326821.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12862389 - 2⁵ = 12862357 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 (12862309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2143729 + ... + 2143734.

It is an arithmetic number, because the mean of its divisors is an integer number (4287464).

Almost surely, 2^12862389 is an apocalyptic number.

It is an amenable number.

12862389 is a deficient number, since it is larger than the sum of its proper divisors (4287467).

12862389 is an equidigital number, since it uses as much as digits as its factorization.

12862389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4287466.

The product of its digits is 41472, while the sum is 39.

The square root of 12862389 is about 3586.4172930656. The cubic root of 12862389 is about 234.3008585399.

The spelling of 12862389 in words is "twelve million, eight hundred sixty-two thousand, three hundred eighty-nine".