12968449 has 4 divisors (see below), whose sum is σ = 13966036. Its totient is φ = 11970864.

The previous prime is 12968441. The next prime is 12968471. The reversal of 12968449 is 94486921.

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

It can be written as a sum of positive squares in 2 ways, for example, as 753424 + 12215025 = 868^2 + 3495^2 .

It is a cyclic number.

It is not a de Polignac number, because 12968449 - 2³ = 12968441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12968441) 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, 498774 + ... + 498799.

It is an arithmetic number, because the mean of its divisors is an integer number (3491509).

Almost surely, 2^12968449 is an apocalyptic number.

It is an amenable number.

12968449 is a deficient number, since it is larger than the sum of its proper divisors (997587).

12968449 is an equidigital number, since it uses as much as digits as its factorization.

12968449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997586.

The product of its digits is 124416, while the sum is 43.

The square root of 12968449 is about 3601.1732810294. The cubic root of 12968449 is about 234.9430916976.

The spelling of 12968449 in words is "twelve million, nine hundred sixty-eight thousand, four hundred forty-nine".