12928736 has 24 divisors (see below), whose sum is σ = 26276544. Its totient is φ = 6255360.

The previous prime is 12928733. The next prime is 12928739. The reversal of 12928736 is 63782921.

It is an interprime number because it is at equal distance from previous prime (12928733) and next prime (12928739).

It is a self number, because there is not a number n which added to its sum of digits gives 12928736.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12928733) 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, 5525 + ... + 7508.

It is an arithmetic number, because the mean of its divisors is an integer number (1094856).

Almost surely, 2^12928736 is an apocalyptic number.

12928736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12928736 is an abundant number, since it is smaller than the sum of its proper divisors (13347808).

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

12928736 is a wasteful number, since it uses less digits than its factorization.

12928736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13074 (or 13066 counting only the distinct ones).

The product of its digits is 36288, while the sum is 38.

The square root of 12928736 is about 3595.6551558791. The cubic root of 12928736 is about 234.7030261040.

The spelling of 12928736 in words is "twelve million, nine hundred twenty-eight thousand, seven hundred thirty-six".