12989922 has 16 divisors (see below), whose sum is σ = 28341792. Its totient is φ = 3936320.

The previous prime is 12989897. The next prime is 12989927. The reversal of 12989922 is 22998921.

It is a happy number.

12989922 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12989927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98343 + ... + 98474.

It is an arithmetic number, because the mean of its divisors is an integer number (1771362).

Almost surely, 2^12989922 is an apocalyptic number.

12989922 is an abundant number, since it is smaller than the sum of its proper divisors (15351870).

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

12989922 is a wasteful number, since it uses less digits than its factorization.

12989922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196833.

The product of its digits is 46656, while the sum is 42.

The square root of 12989922 is about 3604.1534373553. The cubic root of 12989922 is about 235.0726921641.

It can be divided in two parts, 129899 and 22, that added together give a palindrome (129921).

The spelling of 12989922 in words is "twelve million, nine hundred eighty-nine thousand, nine hundred twenty-two".