8821823805 has 40 divisors (see below), whose sum is σ = 15848138592. Its totient is φ = 4694797152.

The previous prime is 8821823797. The next prime is 8821823807. The reversal of 8821823805 is 5083281288.

8821823805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8821823805 - 2³ = 8821823797 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8821823807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 165814 + ... + 212456.

Almost surely, 2^8821823805 is an apocalyptic number.

It is an amenable number.

8821823805 is a deficient number, since it is larger than the sum of its proper divisors (7026314787).

8821823805 is a wasteful number, since it uses less digits than its factorization.

8821823805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47127 (or 47118 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 45.

The square root of 8821823805 is about 93924.5644387026. The cubic root of 8821823805 is about 2066.2655098786.

The spelling of 8821823805 in words is "eight billion, eight hundred twenty-one million, eight hundred twenty-three thousand, eight hundred five".