12748666 has 8 divisors (see below), whose sum is σ = 21854880. Its totient is φ = 5463708.

The previous prime is 12748651. The next prime is 12748669. The reversal of 12748666 is 66684721.

12748666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (12748669) 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, 455296 + ... + 455323.

It is an arithmetic number, because the mean of its divisors is an integer number (2731860).

Almost surely, 2^12748666 is an apocalyptic number.

12748666 is a deficient number, since it is larger than the sum of its proper divisors (9106214).

12748666 is an equidigital number, since it uses as much as digits as its factorization.

12748666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910628.

The product of its digits is 96768, while the sum is 40.

The square root of 12748666 is about 3570.5274120219. The cubic root of 12748666 is about 233.6082885695.

The spelling of 12748666 in words is "twelve million, seven hundred forty-eight thousand, six hundred sixty-six".