8820665 has 16 divisors (see below), whose sum is σ = 12184320. Its totient is φ = 6004800.

The previous prime is 8820649. The next prime is 8820697. The reversal of 8820665 is 5660288.

8820665 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 8820665 - 2⁴ = 8820649 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4451 + ... + 6119.

It is an arithmetic number, because the mean of its divisors is an integer number (761520).

Almost surely, 2^8820665 is an apocalyptic number.

It is an amenable number.

8820665 is a deficient number, since it is larger than the sum of its proper divisors (3363655).

8820665 is a wasteful number, since it uses less digits than its factorization.

8820665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1832.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 8820665 is about 2969.9604374469. The cubic root of 8820665 is about 206.6175033362.

The spelling of 8820665 in words is "eight million, eight hundred twenty thousand, six hundred sixty-five".