12804906 has 32 divisors (see below), whose sum is σ = 26526528. Its totient is φ = 4118400.

The previous prime is 12804877. The next prime is 12804907. The reversal of 12804906 is 60940821.

It is not an unprimeable number, because it can be changed into a prime (12804907) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 21006 + ... + 21606.

It is an arithmetic number, because the mean of its divisors is an integer number (828954).

Almost surely, 2^12804906 is an apocalyptic number.

12804906 is an abundant number, since it is smaller than the sum of its proper divisors (13721622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12804906 is a wasteful number, since it uses less digits than its factorization.

12804906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 12804906 is about 3578.3943326582. The cubic root of 12804906 is about 233.9513011376.

The spelling of 12804906 in words is "twelve million, eight hundred four thousand, nine hundred six".