12786922 has 4 divisors (see below), whose sum is σ = 19180386. Its totient is φ = 6393460.

The previous prime is 12786913. The next prime is 12786937. The reversal of 12786922 is 22968721.

12786922 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11703241 + 1083681 = 3421^2 + 1041^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3196729 + ... + 3196732.

Almost surely, 2^12786922 is an apocalyptic number.

12786922 is a deficient number, since it is larger than the sum of its proper divisors (6393464).

12786922 is an equidigital number, since it uses as much as digits as its factorization.

12786922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6393463.

The product of its digits is 24192, while the sum is 37.

The square root of 12786922 is about 3575.8805908475. The cubic root of 12786922 is about 233.8417246091.

The spelling of 12786922 in words is "twelve million, seven hundred eighty-six thousand, nine hundred twenty-two".