12843664 has 10 divisors (see below), whose sum is σ = 24884630. Its totient is φ = 6421824.

The previous prime is 12843647. The next prime is 12843689. The reversal of 12843664 is 46634821.

12843664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6553600 + 6290064 = 2560^2 + 2508^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401349 + ... + 401380.

It is an arithmetic number, because the mean of its divisors is an integer number (2488463).

Almost surely, 2^12843664 is an apocalyptic number.

It is an amenable number.

12843664 is a deficient number, since it is larger than the sum of its proper divisors (12040966).

12843664 is an equidigital number, since it uses as much as digits as its factorization.

12843664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802737 (or 802731 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The square root of 12843664 is about 3583.8057983099. The cubic root of 12843664 is about 234.1871053251.

The spelling of 12843664 in words is "twelve million, eight hundred forty-three thousand, six hundred sixty-four".