12867812 has 12 divisors (see below), whose sum is σ = 22543920. Its totient is φ = 6426696.

The previous prime is 12867797. The next prime is 12867839. The reversal of 12867812 is 21876821.

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, 5483 + ... + 7469.

It is an arithmetic number, because the mean of its divisors is an integer number (1878660).

Almost surely, 2^12867812 is an apocalyptic number.

It is an amenable number.

12867812 is a deficient number, since it is larger than the sum of its proper divisors (9676108).

12867812 is a wasteful number, since it uses less digits than its factorization.

12867812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3610 (or 3608 counting only the distinct ones).

The product of its digits is 10752, while the sum is 35.

The square root of 12867812 is about 3587.1732603821. The cubic root of 12867812 is about 234.3337823103. Note that the first 3 decimals are identical.

Subtracting 12867812 from its reverse (21876821), we obtain a palindrome (9009009).

The spelling of 12867812 in words is "twelve million, eight hundred sixty-seven thousand, eight hundred twelve".