12723922 has 32 divisors (see below), whose sum is σ = 21555072. Its totient is φ = 5601024.

The previous prime is 12723917. The next prime is 12723923. The reversal of 12723922 is 22932721.

It is not an unprimeable number, because it can be changed into a prime (12723923) 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, 41293 + ... + 41599.

It is an arithmetic number, because the mean of its divisors is an integer number (673596).

Almost surely, 2^12723922 is an apocalyptic number.

12723922 is a deficient number, since it is larger than the sum of its proper divisors (8831150).

12723922 is a wasteful number, since it uses less digits than its factorization.

12723922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402.

The product of its digits is 3024, while the sum is 28.

The square root of 12723922 is about 3567.0606947457. The cubic root of 12723922 is about 233.4570532095.

The spelling of 12723922 in words is "twelve million, seven hundred twenty-three thousand, nine hundred twenty-two".