12898449 has 24 divisors (see below), whose sum is σ = 19498752. Its totient is φ = 8206560.

The previous prime is 12898441. The next prime is 12898453. The reversal of 12898449 is 94489821.

It is not a de Polignac number, because 12898449 - 2³ = 12898441 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12898441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22879 + ... + 23435.

It is an arithmetic number, because the mean of its divisors is an integer number (812448).

Almost surely, 2^12898449 is an apocalyptic number.

It is an amenable number.

12898449 is a deficient number, since it is larger than the sum of its proper divisors (6600303).

12898449 is a wasteful number, since it uses less digits than its factorization.

12898449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677 (or 674 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 12898449 is about 3591.4410756687. The cubic root of 12898449 is about 234.5196101700.

The spelling of 12898449 in words is "twelve million, eight hundred ninety-eight thousand, four hundred forty-nine".