12798819 has 12 divisors (see below), whose sum is σ = 20167992. Its totient is φ = 7756800.

The previous prime is 12798817. The next prime is 12798829. The reversal of 12798819 is 91889721.

12798819 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 12798819 - 2¹ = 12798817 is a prime.

It is a super-2 number, since 2×12798819² = 327619535589522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12798817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64542 + ... + 64739.

It is an arithmetic number, because the mean of its divisors is an integer number (1680666).

Almost surely, 2^12798819 is an apocalyptic number.

12798819 is a deficient number, since it is larger than the sum of its proper divisors (7369173).

12798819 is a wasteful number, since it uses less digits than its factorization.

12798819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129298 (or 129295 counting only the distinct ones).

The product of its digits is 72576, while the sum is 45.

The square root of 12798819 is about 3577.5437104248. The cubic root of 12798819 is about 233.9142245338.

The spelling of 12798819 in words is "twelve million, seven hundred ninety-eight thousand, eight hundred nineteen".