12646870 has 8 divisors (see below), whose sum is σ = 22764384. Its totient is φ = 5058744.

The previous prime is 12646867. The next prime is 12646877. The reversal of 12646870 is 7864621.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12646877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 632334 + ... + 632353.

It is an arithmetic number, because the mean of its divisors is an integer number (2845548).

Almost surely, 2^12646870 is an apocalyptic number.

12646870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12646870 is a deficient number, since it is larger than the sum of its proper divisors (10117514).

12646870 is a wasteful number, since it uses less digits than its factorization.

12646870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264694.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 12646870 is about 3556.2438049155. The cubic root of 12646870 is about 232.9848516864.

The spelling of 12646870 in words is "twelve million, six hundred forty-six thousand, eight hundred seventy".