12773218 has 8 divisors (see below), whose sum is σ = 19178460. Its totient is φ = 6380400.

The previous prime is 12773203. The next prime is 12773219. The reversal of 12773218 is 81237721.

12773218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12766329 + 6889 = 3573^2 + 83^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 12773218.

It is not an unprimeable number, because it can be changed into a prime (12773219) 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, 148 + ... + 5056.

Almost surely, 2^12773218 is an apocalyptic number.

12773218 is a deficient number, since it is larger than the sum of its proper divisors (6405242).

12773218 is a wasteful number, since it uses less digits than its factorization.

12773218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6212.

The product of its digits is 4704, while the sum is 31.

The square root of 12773218 is about 3573.9639058054. The cubic root of 12773218 is about 233.7581571310.

The spelling of 12773218 in words is "twelve million, seven hundred seventy-three thousand, two hundred eighteen".