12939946 has 8 divisors (see below), whose sum is σ = 19823040. Its totient is φ = 6332268.

The previous prime is 12939943. The next prime is 12939967. The reversal of 12939946 is 64993921.

12939946 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (12939943) 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, 68736 + ... + 68923.

It is an arithmetic number, because the mean of its divisors is an integer number (2477880).

Almost surely, 2^12939946 is an apocalyptic number.

12939946 is a deficient number, since it is larger than the sum of its proper divisors (6883094).

12939946 is a wasteful number, since it uses less digits than its factorization.

12939946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137708.

The product of its digits is 104976, while the sum is 43.

The square root of 12939946 is about 3597.2136439194. The cubic root of 12939946 is about 234.7708404381.

The spelling of 12939946 in words is "twelve million, nine hundred thirty-nine thousand, nine hundred forty-six".