12823942 has 4 divisors (see below), whose sum is σ = 19235916. Its totient is φ = 6411970.

The previous prime is 12823927. The next prime is 12823961. The reversal of 12823942 is 24932821.

12823942 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: 24932821 = 3449 ⋅7229.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3205984 + ... + 3205987.

It is an arithmetic number, because the mean of its divisors is an integer number (4808979).

Almost surely, 2^12823942 is an apocalyptic number.

12823942 is a deficient number, since it is larger than the sum of its proper divisors (6411974).

12823942 is an equidigital number, since it uses as much as digits as its factorization.

12823942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6411973.

The product of its digits is 6912, while the sum is 31.

The square root of 12823942 is about 3581.0531970358. The cubic root of 12823942 is about 234.0671757851.

The spelling of 12823942 in words is "twelve million, eight hundred twenty-three thousand, nine hundred forty-two".