12803216 has 20 divisors (see below), whose sum is σ = 24948924. Its totient is φ = 6364800.

The previous prime is 12803213. The next prime is 12803237. The reversal of 12803216 is 61230821.

It can be written as a sum of positive squares in 2 ways, for example, as 4393216 + 8410000 = 2096^2 + 2900^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 12803191 and 12803200.

It is not an unprimeable number, because it can be changed into a prime (12803213) 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, 686 + ... + 5106.

Almost surely, 2^12803216 is an apocalyptic number.

12803216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12803216 is a deficient number, since it is larger than the sum of its proper divisors (12145708).

12803216 is a wasteful number, since it uses less digits than its factorization.

12803216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4610 (or 4604 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 12803216 is about 3578.1581854356. The cubic root of 12803216 is about 233.9410083354.

The spelling of 12803216 in words is "twelve million, eight hundred three thousand, two hundred sixteen".