12878349 has 16 divisors (see below), whose sum is σ = 19379520. Its totient is φ = 7535360.

The previous prime is 12878347. The next prime is 12878357. The reversal of 12878349 is 94387821.

It is not a de Polignac number, because 12878349 - 2¹ = 12878347 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12878349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12878347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5772 + ... + 7685.

It is an arithmetic number, because the mean of its divisors is an integer number (1211220).

Almost surely, 2^12878349 is an apocalyptic number.

It is an amenable number.

12878349 is a deficient number, since it is larger than the sum of its proper divisors (6501171).

12878349 is a wasteful number, since it uses less digits than its factorization.

12878349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13500.

The product of its digits is 96768, while the sum is 42.

The square root of 12878349 is about 3588.6416650315. The cubic root of 12878349 is about 234.3977274316.

The spelling of 12878349 in words is "twelve million, eight hundred seventy-eight thousand, three hundred forty-nine".