12816837 has 24 divisors (see below), whose sum is σ = 20748000. Its totient is φ = 7555680.

The previous prime is 12816821. The next prime is 12816841. The reversal of 12816837 is 73861821.

It is not a de Polignac number, because 12816837 - 2⁴ = 12816821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12816877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1914 + ... + 5412.

It is an arithmetic number, because the mean of its divisors is an integer number (864500).

Almost surely, 2^12816837 is an apocalyptic number.

It is an amenable number.

12816837 is a deficient number, since it is larger than the sum of its proper divisors (7931163).

12816837 is a wasteful number, since it uses less digits than its factorization.

12816837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3553 (or 3550 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 12816837 is about 3580.0610329993. The cubic root of 12816837 is about 234.0239401323.

It can be divided in two parts, 1281 and 6837, that added together give a palindrome (8118).

The spelling of 12816837 in words is "twelve million, eight hundred sixteen thousand, eight hundred thirty-seven".