12878396 has 12 divisors (see below), whose sum is σ = 22681848. Its totient is φ = 6397872.

The previous prime is 12878377. The next prime is 12878431. The reversal of 12878396 is 69387821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9626 + ... + 10881.

It is an arithmetic number, because the mean of its divisors is an integer number (1890154).

Almost surely, 2^12878396 is an apocalyptic number.

It is an amenable number.

12878396 is a deficient number, since it is larger than the sum of its proper divisors (9803452).

12878396 is a wasteful number, since it uses less digits than its factorization.

12878396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20668 (or 20666 counting only the distinct ones).

The product of its digits is 145152, while the sum is 44.

The square root of 12878396 is about 3588.6482134642. The cubic root of 12878396 is about 234.3980125789.

The spelling of 12878396 in words is "twelve million, eight hundred seventy-eight thousand, three hundred ninety-six".