12822864 has 20 divisors (see below), whose sum is σ = 33125856. Its totient is φ = 4274272.

The previous prime is 12822863. The next prime is 12822877. The reversal of 12822864 is 46822821.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12822863) 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, 133524 + ... + 133619.

Almost surely, 2^12822864 is an apocalyptic number.

It is an amenable number.

12822864 is an abundant number, since it is smaller than the sum of its proper divisors (20302992).

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

12822864 is a wasteful number, since it uses less digits than its factorization.

12822864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267154 (or 267148 counting only the distinct ones).

The product of its digits is 12288, while the sum is 33.

The square root of 12822864 is about 3580.9026794930. The cubic root of 12822864 is about 234.0606169208.

The spelling of 12822864 in words is "twelve million, eight hundred twenty-two thousand, eight hundred sixty-four".