12979286 has 8 divisors (see below), whose sum is σ = 19524240. Its totient is φ = 6471208.

The previous prime is 12979283. The next prime is 12979289. The reversal of 12979286 is 68297921.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12979283) and next prime (12979289).

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12979283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8321 + ... + 9756.

It is an arithmetic number, because the mean of its divisors is an integer number (2440530).

Almost surely, 2^12979286 is an apocalyptic number.

12979286 is a deficient number, since it is larger than the sum of its proper divisors (6544954).

12979286 is a wasteful number, since it uses less digits than its factorization.

12979286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18438.

The product of its digits is 108864, while the sum is 44.

The square root of 12979286 is about 3602.6776153300. The cubic root of 12979286 is about 235.0085163656.

The spelling of 12979286 in words is "twelve million, nine hundred seventy-nine thousand, two hundred eighty-six".