12684475 has 12 divisors (see below), whose sum is σ = 15920856. Its totient is φ = 10023680.

The previous prime is 12684473. The next prime is 12684481. The reversal of 12684475 is 57448621.

12684475 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12684475 - 2¹ = 12684473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12684473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 982 + ... + 5131.

It is an arithmetic number, because the mean of its divisors is an integer number (1326738).

Almost surely, 2^12684475 is an apocalyptic number.

12684475 is a deficient number, since it is larger than the sum of its proper divisors (3236381).

12684475 is an equidigital number, since it uses as much as digits as its factorization.

12684475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6206 (or 6201 counting only the distinct ones).

The product of its digits is 53760, while the sum is 37.

The square root of 12684475 is about 3561.5270601246. The cubic root of 12684475 is about 233.2155471277.

The spelling of 12684475 in words is "twelve million, six hundred eighty-four thousand, four hundred seventy-five".