12784668 has 24 divisors (see below), whose sum is σ = 32125968. Its totient is φ = 3933696.

The previous prime is 12784643. The next prime is 12784687. The reversal of 12784668 is 86648721.

It is a super-4 number, since 4×12784668⁴ (a number of 30 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40821 + ... + 41132.

It is an arithmetic number, because the mean of its divisors is an integer number (1338582).

Almost surely, 2^12784668 is an apocalyptic number.

It is an amenable number.

12784668 is an abundant number, since it is smaller than the sum of its proper divisors (19341300).

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

12784668 is a wasteful number, since it uses less digits than its factorization.

12784668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81973 (or 81971 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 12784668 is about 3575.5654098338. The cubic root of 12784668 is about 233.8279837412.

The spelling of 12784668 in words is "twelve million, seven hundred eighty-four thousand, six hundred sixty-eight".