12956922 has 60 divisors (see below), whose sum is σ = 31960698. Its totient is φ = 3920400.

The previous prime is 12956903. The next prime is 12956927. The reversal of 12956922 is 22965921.

12956922 = 99² + 100² + ... + 341².

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9418761 + 3538161 = 3069^2 + 1881^2 .

It is not an unprimeable number, because it can be changed into a prime (12956927) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 19272 + ... + 19932.

Almost surely, 2^12956922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12956922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15980349).

12956922 is an abundant number, since it is smaller than the sum of its proper divisors (19003776).

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

12956922 is a wasteful number, since it uses less digits than its factorization.

12956922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697 (or 677 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 12956922 is about 3599.5724746142. The cubic root of 12956922 is about 234.8734613765.

The spelling of 12956922 in words is "twelve million, nine hundred fifty-six thousand, nine hundred twenty-two".