12923993 has 8 divisors (see below), whose sum is σ = 13526016. Its totient is φ = 12333600.

The previous prime is 12923987. The next prime is 12924001. The reversal of 12923993 is 39932921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12923993 - 2⁶ = 12923929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12923903) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 593 + ... + 5118.

It is an arithmetic number, because the mean of its divisors is an integer number (1690752).

Almost surely, 2^12923993 is an apocalyptic number.

It is an amenable number.

12923993 is a deficient number, since it is larger than the sum of its proper divisors (602023).

12923993 is an equidigital number, since it uses as much as digits as its factorization.

12923993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5815.

The product of its digits is 26244, while the sum is 38.

The square root of 12923993 is about 3594.9955493714. The cubic root of 12923993 is about 234.6743217612.

The spelling of 12923993 in words is "twelve million, nine hundred twenty-three thousand, nine hundred ninety-three".