12800784 has 20 divisors (see below), whose sum is σ = 33068816. Its totient is φ = 4266912.

The previous prime is 12800783. The next prime is 12800791. The reversal of 12800784 is 48700821.

It is not an unprimeable number, because it can be changed into a prime (12800783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133294 + ... + 133389.

Almost surely, 2^12800784 is an apocalyptic number.

It is an amenable number.

12800784 is an abundant number, since it is smaller than the sum of its proper divisors (20268032).

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

12800784 is a wasteful number, since it uses less digits than its factorization.

12800784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266694 (or 266688 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 12800784 is about 3577.8183296529. The cubic root of 12800784 is about 233.9261948552.

The spelling of 12800784 in words is "twelve million, eight hundred thousand, seven hundred eighty-four".