12904666 has 8 divisors (see below), whose sum is σ = 20495700. Its totient is φ = 6072768.

The previous prime is 12904643. The next prime is 12904673. The reversal of 12904666 is 66640921.

12904666 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 12852225 + 52441 = 3585^2 + 229^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 379549 = 12904666 / (1 + 2 + 9 + 0 + 4 + 6 + 6 + 6).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189741 + ... + 189808.

Almost surely, 2^12904666 is an apocalyptic number.

12904666 is a deficient number, since it is larger than the sum of its proper divisors (7591034).

12904666 is a wasteful number, since it uses less digits than its factorization.

12904666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379568.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 12904666 is about 3592.3065013999. The cubic root of 12904666 is about 234.5572832842.

The spelling of 12904666 in words is "twelve million, nine hundred four thousand, six hundred sixty-six".