12782875 has 24 divisors (see below), whose sum is σ = 18566496. Its totient is φ = 8761200.

The previous prime is 12782873. The next prime is 12782879. The reversal of 12782875 is 57828721.

12782875 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12782875 - 2¹ = 12782873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12782873) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 5082 + ... + 7168.

It is an arithmetic number, because the mean of its divisors is an integer number (773604).

Almost surely, 2^12782875 is an apocalyptic number.

12782875 is a deficient number, since it is larger than the sum of its proper divisors (5783621).

12782875 is an equidigital number, since it uses as much as digits as its factorization.

12782875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2116 (or 2099 counting only the distinct ones).

The product of its digits is 62720, while the sum is 40.

The square root of 12782875 is about 3575.3146714660. The cubic root of 12782875 is about 233.8170520748.

The spelling of 12782875 in words is "twelve million, seven hundred eighty-two thousand, eight hundred seventy-five".