12659974 has 8 divisors (see below), whose sum is σ = 19431720. Its totient is φ = 6182736.

The previous prime is 12659963. The next prime is 12660013. The reversal of 12659974 is 47995621.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 12659974.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73519 + ... + 73690.

It is an arithmetic number, because the mean of its divisors is an integer number (2428965).

Almost surely, 2^12659974 is an apocalyptic number.

12659974 is a deficient number, since it is larger than the sum of its proper divisors (6771746).

12659974 is a wasteful number, since it uses less digits than its factorization.

12659974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147254.

The product of its digits is 136080, while the sum is 43.

The square root of 12659974 is about 3558.0857212833. The cubic root of 12659974 is about 233.0652926608.

The spelling of 12659974 in words is "twelve million, six hundred fifty-nine thousand, nine hundred seventy-four".