12826664 has 8 divisors (see below), whose sum is σ = 24050010. Its totient is φ = 6413328.

The previous prime is 12826651. The next prime is 12826669. The reversal of 12826664 is 46662821.

It can be written as a sum of positive squares in only one way, i.e., 12545764 + 280900 = 3542^2 + 530^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (12826669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 801659 + ... + 801674.

Almost surely, 2^12826664 is an apocalyptic number.

It is an amenable number.

12826664 is a deficient number, since it is larger than the sum of its proper divisors (11223346).

12826664 is a wasteful number, since it uses less digits than its factorization.

12826664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603339 (or 1603335 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 12826664 is about 3581.4332326598. The cubic root of 12826664 is about 234.0837355860.

The spelling of 12826664 in words is "twelve million, eight hundred twenty-six thousand, six hundred sixty-four".