12873321 has 12 divisors (see below), whose sum is σ = 18685680. Its totient is φ = 8540280.

The previous prime is 12873319. The next prime is 12873337. The reversal of 12873321 is 12337821.

12873321 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 12873321 - 2¹ = 12873319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12873391) 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, 1491 + ... + 5288.

It is an arithmetic number, because the mean of its divisors is an integer number (1557140).

Almost surely, 2^12873321 is an apocalyptic number.

It is an amenable number.

12873321 is a deficient number, since it is larger than the sum of its proper divisors (5812359).

12873321 is a wasteful number, since it uses less digits than its factorization.

12873321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6996 (or 6993 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 12873321 is about 3587.9410530275. The cubic root of 12873321 is about 234.3672187283.

The spelling of 12873321 in words is "twelve million, eight hundred seventy-three thousand, three hundred twenty-one".