12809875 has 16 divisors (see below), whose sum is σ = 17218656. Its totient is φ = 9458400.

The previous prime is 12809869. The next prime is 12809879. The reversal of 12809875 is 57890821.

It is not a de Polignac number, because 12809875 - 2⁵ = 12809843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12809879) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2317 + ... + 5566.

It is an arithmetic number, because the mean of its divisors is an integer number (1076166).

Almost surely, 2^12809875 is an apocalyptic number.

12809875 is a deficient number, since it is larger than the sum of its proper divisors (4408781).

12809875 is an equidigital number, since it uses as much as digits as its factorization.

12809875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7911 (or 7901 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 12809875 is about 3579.0885711309. The cubic root of 12809875 is about 233.9815591672.

The spelling of 12809875 in words is "twelve million, eight hundred nine thousand, eight hundred seventy-five".