12939086 has 8 divisors (see below), whose sum is σ = 19454160. Its totient is φ = 6454368.

The previous prime is 12939083. The next prime is 12939109. The reversal of 12939086 is 68093921.

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 (12939083) 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, 6491 + ... + 8246.

It is an arithmetic number, because the mean of its divisors is an integer number (2431770).

Almost surely, 2^12939086 is an apocalyptic number.

12939086 is a deficient number, since it is larger than the sum of its proper divisors (6515074).

12939086 is a wasteful number, since it uses less digits than its factorization.

12939086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15178.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 12939086 is about 3597.0941049686. The cubic root of 12939086 is about 234.7656392986.

The spelling of 12939086 in words is "twelve million, nine hundred thirty-nine thousand, eighty-six".