823999068 has 60 divisors (see below), whose sum is σ = 2267486760. Its totient is φ = 260208288.

The previous prime is 823999063. The next prime is 823999079. The reversal of 823999068 is 860999328.

823999068 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823999063) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 60771 + ... + 73082.

It is an arithmetic number, because the mean of its divisors is an integer number (37791446).

Almost surely, 2^823999068 is an apocalyptic number.

It is an amenable number.

823999068 is an abundant number, since it is smaller than the sum of its proper divisors (1443487692).

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

823999068 is a wasteful number, since it uses less digits than its factorization.

823999068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133888 (or 133877 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The square root of 823999068 is about 28705.3839549308. The cubic root of 823999068 is about 937.5092760682.

The spelling of 823999068 in words is "eight hundred twenty-three million, nine hundred ninety-nine thousand, sixty-eight".