12679642 has 8 divisors (see below), whose sum is σ = 19133856. Its totient is φ = 6301692.

The previous prime is 12679633. The next prime is 12679663. The reversal of 12679642 is 24697621.

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

It is an unprimeable number.

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, 18648 + ... + 19315.

It is an arithmetic number, because the mean of its divisors is an integer number (2391732).

Almost surely, 2^12679642 is an apocalyptic number.

12679642 is a deficient number, since it is larger than the sum of its proper divisors (6454214).

12679642 is a wasteful number, since it uses less digits than its factorization.

12679642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38132.

The product of its digits is 36288, while the sum is 37.

The square root of 12679642 is about 3560.8484943901. The cubic root of 12679642 is about 233.1859236728.

The spelling of 12679642 in words is "twelve million, six hundred seventy-nine thousand, six hundred forty-two".