12928806 has 96 divisors (see below), whose sum is σ = 33965568. Its totient is φ = 3505920.

The previous prime is 12928757. The next prime is 12928813. The reversal of 12928806 is 60882921.

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 77335 + ... + 77501.

It is an arithmetic number, because the mean of its divisors is an integer number (353808).

Almost surely, 2^12928806 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12928806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16982784).

12928806 is an abundant number, since it is smaller than the sum of its proper divisors (21036762).

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

12928806 is a wasteful number, since it uses less digits than its factorization.

12928806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 12928806 is about 3595.6648898361. The cubic root of 12928806 is about 234.7034496871.

The spelling of 12928806 in words is "twelve million, nine hundred twenty-eight thousand, eight hundred six".