8820805 has 16 divisors (see below), whose sum is σ = 12380544. Its totient is φ = 5906880.

The previous prime is 8820803. The next prime is 8820811. The reversal of 8820805 is 5080288.

It is not a de Polignac number, because 8820805 - 2¹ = 8820803 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8820803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1426 + ... + 4435.

It is an arithmetic number, because the mean of its divisors is an integer number (773784).

Almost surely, 2^8820805 is an apocalyptic number.

It is an amenable number.

8820805 is a deficient number, since it is larger than the sum of its proper divisors (3559739).

8820805 is a wasteful number, since it uses less digits than its factorization.

8820805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5916.

The product of its (nonzero) digits is 5120, while the sum is 31.

The square root of 8820805 is about 2969.9840066909. The cubic root of 8820805 is about 206.6185964623.

The spelling of 8820805 in words is "eight million, eight hundred twenty thousand, eight hundred five".