12873219 has 4 divisors (see below), whose sum is σ = 17164296. Its totient is φ = 8582144.

The previous prime is 12873197. The next prime is 12873229. The reversal of 12873219 is 91237821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91237821 = 3 ⋅30412607.

It is a cyclic number.

It is not a de Polignac number, because 12873219 - 2⁸ = 12872963 is a prime.

It is a super-2 number, since 2×12873219² = 331439534843922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12873219.

It is not an unprimeable number, because it can be changed into a prime (12873229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2145534 + ... + 2145539.

It is an arithmetic number, because the mean of its divisors is an integer number (4291074).

Almost surely, 2^12873219 is an apocalyptic number.

12873219 is a deficient number, since it is larger than the sum of its proper divisors (4291077).

12873219 is an equidigital number, since it uses as much as digits as its factorization.

12873219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4291076.

The product of its digits is 6048, while the sum is 33.

The square root of 12873219 is about 3587.9268387190. The cubic root of 12873219 is about 234.3665997345.

The spelling of 12873219 in words is "twelve million, eight hundred seventy-three thousand, two hundred nineteen".