8821908047 has 2 divisors, whose sum is σ = 8821908048. Its totient is φ = 8821908046.

The previous prime is 8821908041. The next prime is 8821908089. The reversal of 8821908047 is 7408091288.

8821908047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8821908047 - 2¹⁶ = 8821842511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8821907992 and 8821908010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8821908041) 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 as a sum of consecutive naturals, namely, 4410954023 + 4410954024.

It is an arithmetic number, because the mean of its divisors is an integer number (4410954024).

Almost surely, 2^8821908047 is an apocalyptic number.

8821908047 is a deficient number, since it is larger than the sum of its proper divisors (1).

8821908047 is an equidigital number, since it uses as much as digits as its factorization.

8821908047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 258048, while the sum is 47.

The square root of 8821908047 is about 93925.0128932650. The cubic root of 8821908047 is about 2066.2720869685.

The spelling of 8821908047 in words is "eight billion, eight hundred twenty-one million, nine hundred eight thousand, forty-seven".