12684164 has 6 divisors (see below), whose sum is σ = 22197294. Its totient is φ = 6342080.

The previous prime is 12684163. The next prime is 12684179. The reversal of 12684164 is 46148621.

It can be written as a sum of positive squares in only one way, i.e., 12390400 + 293764 = 3520^2 + 542^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12684164.

It is not an unprimeable number, because it can be changed into a prime (12684163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1585517 + ... + 1585524.

It is an arithmetic number, because the mean of its divisors is an integer number (3699549).

Almost surely, 2^12684164 is an apocalyptic number.

It is an amenable number.

12684164 is a deficient number, since it is larger than the sum of its proper divisors (9513130).

12684164 is a wasteful number, since it uses less digits than its factorization.

12684164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3171045 (or 3171043 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 12684164 is about 3561.4833988101. The cubic root of 12684164 is about 233.2136411067.

The spelling of 12684164 in words is "twelve million, six hundred eighty-four thousand, one hundred sixty-four".