12868616 has 8 divisors (see below), whose sum is σ = 24128670. Its totient is φ = 6434304.

The previous prime is 12868613. The next prime is 12868651. The reversal of 12868616 is 61686821.

It can be written as a sum of positive squares in only one way, i.e., 10588516 + 2280100 = 3254^2 + 1510^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 12868616.

It is not an unprimeable number, because it can be changed into a prime (12868613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 804281 + ... + 804296.

Almost surely, 2^12868616 is an apocalyptic number.

It is an amenable number.

12868616 is a deficient number, since it is larger than the sum of its proper divisors (11260054).

12868616 is a wasteful number, since it uses less digits than its factorization.

12868616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608583 (or 1608579 counting only the distinct ones).

The product of its digits is 27648, while the sum is 38.

The square root of 12868616 is about 3587.2853245874. The cubic root of 12868616 is about 234.3386627162.

The spelling of 12868616 in words is "twelve million, eight hundred sixty-eight thousand, six hundred sixteen".