12939349 has 4 divisors (see below), whose sum is σ = 13158720. Its totient is φ = 12719980.

The previous prime is 12939347. The next prime is 12939359. The reversal of 12939349 is 94393921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12939349 - 2¹ = 12939347 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12939343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109597 + ... + 109714.

It is an arithmetic number, because the mean of its divisors is an integer number (3289680).

Almost surely, 2^12939349 is an apocalyptic number.

It is an amenable number.

12939349 is a deficient number, since it is larger than the sum of its proper divisors (219371).

12939349 is an equidigital number, since it uses as much as digits as its factorization.

12939349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219370.

The product of its digits is 52488, while the sum is 40.

The square root of 12939349 is about 3597.1306620694. The cubic root of 12939349 is about 234.7672299041.

The spelling of 12939349 in words is "twelve million, nine hundred thirty-nine thousand, three hundred forty-nine".