8009985 has 8 divisors (see below), whose sum is σ = 12816000. Its totient is φ = 4271984.

The previous prime is 8009977. The next prime is 8009987. The reversal of 8009985 is 5899008.

8009985 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8009985 - 2³ = 8009977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8009987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266985 + ... + 267014.

It is an arithmetic number, because the mean of its divisors is an integer number (1602000).

Almost surely, 2^8009985 is an apocalyptic number.

It is an amenable number.

8009985 is a deficient number, since it is larger than the sum of its proper divisors (4806015).

8009985 is a wasteful number, since it uses less digits than its factorization.

8009985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534007.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 8009985 is about 2830.1916896210. The cubic root of 8009985 is about 200.0831737392.

The spelling of 8009985 in words is "eight million, nine thousand, nine hundred eighty-five".