12879549 has 24 divisors (see below), whose sum is σ = 19791200. Its totient is φ = 8048160.

The previous prime is 12879547. The next prime is 12879553. The reversal of 12879549 is 94597821.

12879549 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12879549 - 2¹ = 12879547 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12879547) 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, 18294 + ... + 18984.

Almost surely, 2^12879549 is an apocalyptic number.

12879549 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12879549 is a deficient number, since it is larger than the sum of its proper divisors (6911651).

12879549 is a wasteful number, since it uses less digits than its factorization.

12879549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825 (or 822 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 12879549 is about 3588.8088553168. The cubic root of 12879549 is about 234.4050075712.

The spelling of 12879549 in words is "twelve million, eight hundred seventy-nine thousand, five hundred forty-nine".