8821845 has 32 divisors (see below), whose sum is σ = 15863040. Its totient is φ = 4651200.

The previous prime is 8821819. The next prime is 8821867. The reversal of 8821845 is 5481288.

8821845 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8821845 - 2¹⁰ = 8820821 is a prime.

It is a congruent number.

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 in 31 ways as a sum of consecutive naturals, for example, 13312 + ... + 13958.

It is an arithmetic number, because the mean of its divisors is an integer number (495720).

Almost surely, 2^8821845 is an apocalyptic number.

It is an amenable number.

8821845 is a deficient number, since it is larger than the sum of its proper divisors (7041195).

8821845 is a wasteful number, since it uses less digits than its factorization.

8821845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762 (or 756 counting only the distinct ones).

The product of its digits is 20480, while the sum is 36.

The square root of 8821845 is about 2970.1590866484. The cubic root of 8821845 is about 206.6267164656.

The spelling of 8821845 in words is "eight million, eight hundred twenty-one thousand, eight hundred forty-five".