12664276 has 12 divisors (see below), whose sum is σ = 22219540. Its totient is φ = 6315840.

The previous prime is 12664261. The next prime is 12664277. The reversal of 12664276 is 67246621.

12664276 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 2 ways, for example, as 7420176 + 5244100 = 2724^2 + 2290^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12664277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2235 + ... + 5506.

Almost surely, 2^12664276 is an apocalyptic number.

It is an amenable number.

12664276 is a deficient number, since it is larger than the sum of its proper divisors (9555264).

12664276 is a wasteful number, since it uses less digits than its factorization.

12664276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8154 (or 8152 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 12664276 is about 3558.6902084896. The cubic root of 12664276 is about 233.0916890642.

The spelling of 12664276 in words is "twelve million, six hundred sixty-four thousand, two hundred seventy-six".