12704136 has 32 divisors (see below), whose sum is σ = 31933440. Its totient is φ = 4211648.

The previous prime is 12704129. The next prime is 12704161. The reversal of 12704136 is 63140721.

It is a super-2 number, since 2×12704136² = 322790143012992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3385 + ... + 6071.

It is an arithmetic number, because the mean of its divisors is an integer number (997920).

Almost surely, 2^12704136 is an apocalyptic number.

It is an amenable number.

12704136 is an abundant number, since it is smaller than the sum of its proper divisors (19229304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12704136 is a wasteful number, since it uses less digits than its factorization.

12704136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2893 (or 2889 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 12704136 is about 3564.2861837961. The cubic root of 12704136 is about 233.3359800153.

Adding to 12704136 its reverse (63140721), we get a palindrome (75844857).

The spelling of 12704136 in words is "twelve million, seven hundred four thousand, one hundred thirty-six".