12908736 has 84 divisors (see below), whose sum is σ = 37629592. Its totient is φ = 4230144.

The previous prime is 12908713. The next prime is 12908737. The reversal of 12908736 is 63780921.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12908736.

It is not an unprimeable number, because it can be changed into a prime (12908737) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41895 + ... + 42201.

Almost surely, 2^12908736 is an apocalyptic number.

12908736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12908736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18814796).

12908736 is an abundant number, since it is smaller than the sum of its proper divisors (24720856).

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

12908736 is a wasteful number, since it uses less digits than its factorization.

12908736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 12908736 is about 3592.8729451513. The cubic root of 12908736 is about 234.5819396837.

The spelling of 12908736 in words is "twelve million, nine hundred eight thousand, seven hundred thirty-six".