822443864 has 16 divisors (see below), whose sum is σ = 1682271720. Its totient is φ = 373838080.

The previous prime is 822443863. The next prime is 822443873. The reversal of 822443864 is 468344228.

822443864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (822443863) 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, 4672889 + ... + 4673064.

Almost surely, 2^822443864 is an apocalyptic number.

It is an amenable number.

822443864 is an abundant number, since it is smaller than the sum of its proper divisors (859827856).

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

822443864 is a wasteful number, since it uses less digits than its factorization.

822443864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9345970 (or 9345966 counting only the distinct ones).

The product of its digits is 294912, while the sum is 41.

The square root of 822443864 is about 28678.2820963879. The cubic root of 822443864 is about 936.9190907647.

The spelling of 822443864 in words is "eight hundred twenty-two million, four hundred forty-three thousand, eight hundred sixty-four".