12928345 has 16 divisors (see below), whose sum is σ = 16176960. Its totient is φ = 9906624.

The previous prime is 12928327. The next prime is 12928393. The reversal of 12928345 is 54382921.

It is a cyclic number.

It is not a de Polignac number, because 12928345 - 2²³ = 4539737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12928345.

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 15 ways as a sum of consecutive naturals, for example, 23362 + ... + 23908.

It is an arithmetic number, because the mean of its divisors is an integer number (1011060).

Almost surely, 2^12928345 is an apocalyptic number.

It is an amenable number.

12928345 is a deficient number, since it is larger than the sum of its proper divisors (3248615).

12928345 is a wasteful number, since it uses less digits than its factorization.

12928345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744.

The product of its digits is 17280, while the sum is 34.

The square root of 12928345 is about 3595.6007842918. The cubic root of 12928345 is about 234.7006600617.

The spelling of 12928345 in words is "twelve million, nine hundred twenty-eight thousand, three hundred forty-five".