12939926 has 4 divisors (see below), whose sum is σ = 19409892. Its totient is φ = 6469962.

The previous prime is 12939923. The next prime is 12939929. The reversal of 12939926 is 62993921.

12939926 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62993921 = 4801 ⋅13121.

It is an interprime number because it is at equal distance from previous prime (12939923) and next prime (12939929).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12939923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3234980 + ... + 3234983.

It is an arithmetic number, because the mean of its divisors is an integer number (4852473).

Almost surely, 2^12939926 is an apocalyptic number.

12939926 is a deficient number, since it is larger than the sum of its proper divisors (6469966).

12939926 is an equidigital number, since it uses as much as digits as its factorization.

12939926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6469965.

The product of its digits is 52488, while the sum is 41.

The square root of 12939926 is about 3597.2108639889. The cubic root of 12939926 is about 234.7707194840.

The spelling of 12939926 in words is "twelve million, nine hundred thirty-nine thousand, nine hundred twenty-six".