12839449 has 4 divisors (see below), whose sum is σ = 14673664. Its totient is φ = 11005236.

The previous prime is 12839447. The next prime is 12839467. The reversal of 12839449 is 94493821.

12839449 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 12839449 - 2¹ = 12839447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12839443) 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, 917097 + ... + 917110.

It is an arithmetic number, because the mean of its divisors is an integer number (3668416).

Almost surely, 2^12839449 is an apocalyptic number.

It is an amenable number.

12839449 is a deficient number, since it is larger than the sum of its proper divisors (1834215).

12839449 is an equidigital number, since it uses as much as digits as its factorization.

12839449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834214.

The product of its digits is 62208, while the sum is 40.

The square root of 12839449 is about 3583.2176880564. The cubic root of 12839449 is about 234.1614842186.

The spelling of 12839449 in words is "twelve million, eight hundred thirty-nine thousand, four hundred forty-nine".