12813922 has 8 divisors (see below), whose sum is σ = 20968272. Its totient is φ = 5824500.

The previous prime is 12813917. The next prime is 12813929. The reversal of 12813922 is 22931821.

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

It is not an unprimeable number, because it can be changed into a prime (12813929) 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, 291204 + ... + 291247.

It is an arithmetic number, because the mean of its divisors is an integer number (2621034).

Almost surely, 2^12813922 is an apocalyptic number.

12813922 is a deficient number, since it is larger than the sum of its proper divisors (8154350).

12813922 is a wasteful number, since it uses less digits than its factorization.

12813922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582464.

The product of its digits is 1728, while the sum is 28.

The square root of 12813922 is about 3579.6538938842. The cubic root of 12813922 is about 234.0061970258.

The spelling of 12813922 in words is "twelve million, eight hundred thirteen thousand, nine hundred twenty-two".