12246389 has 4 divisors (see below), whose sum is σ = 12256140. Its totient is φ = 12236640.

The previous prime is 12246383. The next prime is 12246433. The reversal of 12246389 is 98364221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 98364221 = 7507 ⋅13103.

It can be written as a sum of positive squares in 2 ways, for example, as 8655364 + 3591025 = 2942^2 + 1895^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12246389 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 (12246383) 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, 2654 + ... + 5615.

It is an arithmetic number, because the mean of its divisors is an integer number (3064035).

Almost surely, 2^12246389 is an apocalyptic number.

It is an amenable number.

12246389 is a deficient number, since it is larger than the sum of its proper divisors (9751).

12246389 is an equidigital number, since it uses as much as digits as its factorization.

12246389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9750.

The product of its digits is 20736, while the sum is 35.

The square root of 12246389 is about 3499.4841048360. The cubic root of 12246389 is about 230.4991616484.

The spelling of 12246389 in words is "twelve million, two hundred forty-six thousand, three hundred eighty-nine".