12873993 has 16 divisors (see below), whose sum is σ = 18794496. Its totient is φ = 7773840.

The previous prime is 12873943. The next prime is 12874007. The reversal of 12873993 is 39937821.

It is not a de Polignac number, because 12873993 - 2⁹ = 12873481 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12873943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11580 + ... + 12642.

It is an arithmetic number, because the mean of its divisors is an integer number (1174656).

Almost surely, 2^12873993 is an apocalyptic number.

It is an amenable number.

12873993 is a deficient number, since it is larger than the sum of its proper divisors (5920503).

12873993 is a wasteful number, since it uses less digits than its factorization.

12873993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444.

The product of its digits is 81648, while the sum is 42.

The square root of 12873993 is about 3588.0346988289. The cubic root of 12873993 is about 234.3712967237.

The spelling of 12873993 in words is "twelve million, eight hundred seventy-three thousand, nine hundred ninety-three".