12664674 has 96 divisors (see below), whose sum is σ = 32707584. Its totient is φ = 3635280.

The previous prime is 12664669. The next prime is 12664681. The reversal of 12664674 is 47646621.

12664674 is a `hidden beast` number, since 1 + 2 + 6 + 646 + 7 + 4 = 666.

12664674 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 122907 + ... + 123009.

It is an arithmetic number, because the mean of its divisors is an integer number (340704).

Almost surely, 2^12664674 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12664674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16353792).

12664674 is an abundant number, since it is smaller than the sum of its proper divisors (20042910).

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

12664674 is a wasteful number, since it uses less digits than its factorization.

12664674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 142 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 12664674 is about 3558.7461275005. The cubic root of 12664674 is about 233.0941308282.

The spelling of 12664674 in words is "twelve million, six hundred sixty-four thousand, six hundred seventy-four".