12837816 has 96 divisors (see below), whose sum is σ = 36753600. Its totient is φ = 4043520.

The previous prime is 12837809. The next prime is 12837821. The reversal of 12837816 is 61873821.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162465 + ... + 162543.

It is an arithmetic number, because the mean of its divisors is an integer number (382850).

Almost surely, 2^12837816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12837816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18376800).

12837816 is an abundant number, since it is smaller than the sum of its proper divisors (23915784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12837816 is a wasteful number, since it uses less digits than its factorization.

12837816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189 (or 182 counting only the distinct ones).

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

The square root of 12837816 is about 3582.9898129914. The cubic root of 12837816 is about 234.1515564324.

The spelling of 12837816 in words is "twelve million, eight hundred thirty-seven thousand, eight hundred sixteen".