12784576 has 28 divisors (see below), whose sum is σ = 28994608. Its totient is φ = 5478912.

The previous prime is 12784567. The next prime is 12784609. The reversal of 12784576 is 67548721.

It is a tau number, because it is divible by the number of its divisors (28).

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, 13821 + ... + 14716.

Almost surely, 2^12784576 is an apocalyptic number.

12784576 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12784576 is an abundant number, since it is smaller than the sum of its proper divisors (16210032).

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

12784576 is an equidigital number, since it uses as much as digits as its factorization.

12784576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28556 (or 28546 counting only the distinct ones).

The product of its digits is 94080, while the sum is 40.

The square root of 12784576 is about 3575.5525447125. The cubic root of 12784576 is about 233.8274228551.

The spelling of 12784576 in words is "twelve million, seven hundred eighty-four thousand, five hundred seventy-six".