12868784 has 20 divisors (see below), whose sum is σ = 25251360. Its totient is φ = 6352320.

The previous prime is 12868781. The next prime is 12868787. The reversal of 12868784 is 48786821.

It is an interprime number because it is at equal distance from previous prime (12868781) and next prime (12868787).

It is not an unprimeable number, because it can be changed into a prime (12868781) 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, 3827 + ... + 6354.

It is an arithmetic number, because the mean of its divisors is an integer number (1262568).

Almost surely, 2^12868784 is an apocalyptic number.

It is an amenable number.

12868784 is a deficient number, since it is larger than the sum of its proper divisors (12382576).

12868784 is a wasteful number, since it uses less digits than its factorization.

12868784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10268 (or 10262 counting only the distinct ones).

The product of its digits is 172032, while the sum is 44.

The square root of 12868784 is about 3587.3087405463. The cubic root of 12868784 is about 234.3396824769.

The spelling of 12868784 in words is "twelve million, eight hundred sixty-eight thousand, seven hundred eighty-four".