12921676 has 12 divisors (see below), whose sum is σ = 23596272. Its totient is φ = 6179888.

The previous prime is 12921673. The next prime is 12921679. The reversal of 12921676 is 67612921.

It is an interprime number because it is at equal distance from previous prime (12921673) and next prime (12921679).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (12921673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70135 + ... + 70318.

It is an arithmetic number, because the mean of its divisors is an integer number (1966356).

Almost surely, 2^12921676 is an apocalyptic number.

It is an amenable number.

12921676 is a deficient number, since it is larger than the sum of its proper divisors (10674596).

12921676 is a wasteful number, since it uses less digits than its factorization.

12921676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140480 (or 140478 counting only the distinct ones).

The product of its digits is 9072, while the sum is 34.

The square root of 12921676 is about 3594.6732813985. The cubic root of 12921676 is about 234.6602968671.

The spelling of 12921676 in words is "twelve million, nine hundred twenty-one thousand, six hundred seventy-six".