8207985 has 16 divisors (see below), whose sum is σ = 13212864. Its totient is φ = 4350912.

The previous prime is 8207971. The next prime is 8207989. The reversal of 8207985 is 5897028.

It is a de Polignac number, because none of the positive numbers 2^k-8207985 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8207989) 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, 1014 + ... + 4176.

It is an arithmetic number, because the mean of its divisors is an integer number (825804).

Almost surely, 2^8207985 is an apocalyptic number.

It is an amenable number.

8207985 is a deficient number, since it is larger than the sum of its proper divisors (5004879).

8207985 is a wasteful number, since it uses less digits than its factorization.

8207985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3344.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 8207985 is about 2864.9581148771. The cubic root of 8207985 is about 201.7184015286.

The spelling of 8207985 in words is "eight million, two hundred seven thousand, nine hundred eighty-five".