823816384 has 14 divisors (see below), whose sum is σ = 1634760764. Its totient is φ = 411908160.

The previous prime is 823816349. The next prime is 823816429. The reversal of 823816384 is 483618328.

It is a super-3 number, since 3×823816384³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 823816384.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6436002 + ... + 6436129.

It is an arithmetic number, because the mean of its divisors is an integer number (116768626).

Almost surely, 2^823816384 is an apocalyptic number.

It is an amenable number.

823816384 is a deficient number, since it is larger than the sum of its proper divisors (810944380).

823816384 is a wasteful number, since it uses less digits than its factorization.

823816384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12872143 (or 12872133 counting only the distinct ones).

The product of its digits is 221184, while the sum is 43.

The square root of 823816384 is about 28702.2017273937. The cubic root of 823816384 is about 937.4399877200.

The spelling of 823816384 in words is "eight hundred twenty-three million, eight hundred sixteen thousand, three hundred eighty-four".