12884218 has 4 divisors (see below), whose sum is σ = 19326330. Its totient is φ = 6442108.

The previous prime is 12884203. The next prime is 12884233. The reversal of 12884218 is 81248821.

12884218 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, and also an emirpimes, since its reverse is a distinct semiprime: 81248821 = 4783 ⋅16987.

It is an interprime number because it is at equal distance from previous prime (12884203) and next prime (12884233).

It can be written as a sum of positive squares in only one way, i.e., 7469289 + 5414929 = 2733^2 + 2327^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3221053 + ... + 3221056.

Almost surely, 2^12884218 is an apocalyptic number.

12884218 is a deficient number, since it is larger than the sum of its proper divisors (6442112).

12884218 is an equidigital number, since it uses as much as digits as its factorization.

12884218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6442111.

The product of its digits is 8192, while the sum is 34.

The square root of 12884218 is about 3589.4592907568. The cubic root of 12884218 is about 234.4333290794.

The spelling of 12884218 in words is "twelve million, eight hundred eighty-four thousand, two hundred eighteen".