12307816 has 16 divisors (see below), whose sum is σ = 23184000. Its totient is φ = 6125424.

The previous prime is 12307811. The next prime is 12307853. The reversal of 12307816 is 61870321.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (12307811) 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, 1666 + ... + 5233.

It is an arithmetic number, because the mean of its divisors is an integer number (1449000).

Almost surely, 2^12307816 is an apocalyptic number.

It is an amenable number.

12307816 is a deficient number, since it is larger than the sum of its proper divisors (10876184).

12307816 is a wasteful number, since it uses less digits than its factorization.

12307816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7128 (or 7124 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 12307816 is about 3508.2497060500. The cubic root of 12307816 is about 230.8839081088.

The spelling of 12307816 in words is "twelve million, three hundred seven thousand, eight hundred sixteen".