12938819 has 6 divisors (see below), whose sum is σ = 13745004. Its totient is φ = 12177440.

The previous prime is 12938813. The next prime is 12938831. The reversal of 12938819 is 91883921.

12938819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12938819 - 2⁴ = 12938803 is a prime.

It is a super-2 number, since 2×12938819² = 334826074229522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12938813) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22097 + ... + 22674.

It is an arithmetic number, because the mean of its divisors is an integer number (2290834).

Almost surely, 2^12938819 is an apocalyptic number.

12938819 is a deficient number, since it is larger than the sum of its proper divisors (806185).

12938819 is an equidigital number, since it uses as much as digits as its factorization.

12938819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44805 (or 44788 counting only the distinct ones).

The product of its digits is 31104, while the sum is 41.

The square root of 12938819 is about 3597.0569914862. The cubic root of 12938819 is about 234.7640244793.

The spelling of 12938819 in words is "twelve million, nine hundred thirty-eight thousand, eight hundred nineteen".