12660670 has 32 divisors (see below), whose sum is σ = 25038720. Its totient is φ = 4571040.

The previous prime is 12660667. The next prime is 12660671. The reversal of 12660670 is 7606621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12660671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19369 + ... + 20011.

It is an arithmetic number, because the mean of its divisors is an integer number (782460).

Almost surely, 2^12660670 is an apocalyptic number.

12660670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12660670 is a deficient number, since it is larger than the sum of its proper divisors (12378050).

12660670 is a wasteful number, since it uses less digits than its factorization.

12660670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 12660670 is about 3558.1835253399. The cubic root of 12660670 is about 233.0695636141.

The spelling of 12660670 in words is "twelve million, six hundred sixty thousand, six hundred seventy".