12873320 has 16 divisors (see below), whose sum is σ = 28965060. Its totient is φ = 5149312.

The previous prime is 12873319. The next prime is 12873337. The reversal of 12873320 is 2337821.

It can be written as a sum of positive squares in 2 ways, for example, as 12859396 + 13924 = 3586^2 + 118^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12873320.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160877 + ... + 160956.

Almost surely, 2^12873320 is an apocalyptic number.

12873320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12873320 is an abundant number, since it is smaller than the sum of its proper divisors (16091740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12873320 is a wasteful number, since it uses less digits than its factorization.

12873320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321844 (or 321840 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 12873320 is about 3587.9409136718. The cubic root of 12873320 is about 234.3672126598.

The spelling of 12873320 in words is "twelve million, eight hundred seventy-three thousand, three hundred twenty".