12878812 has 24 divisors (see below), whose sum is σ = 23327136. Its totient is φ = 6216768.

The previous prime is 12878783. The next prime is 12878839. The reversal of 12878812 is 21887821.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25353 + ... + 25855.

It is an arithmetic number, because the mean of its divisors is an integer number (971964).

Almost surely, 2^12878812 is an apocalyptic number.

It is an amenable number.

12878812 is a deficient number, since it is larger than the sum of its proper divisors (10448324).

12878812 is a wasteful number, since it uses less digits than its factorization.

12878812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717 (or 715 counting only the distinct ones).

The product of its digits is 14336, while the sum is 37.

The square root of 12878812 is about 3588.7061735394. The cubic root of 12878812 is about 234.4005364057.

Subtracting 12878812 from its reverse (21887821), we obtain a palindrome (9009009).

The spelling of 12878812 in words is "twelve million, eight hundred seventy-eight thousand, eight hundred twelve".