9829985 has 16 divisors (see below), whose sum is σ = 13314240. Its totient is φ = 6901440.

The previous prime is 9829969. The next prime is 9829987. The reversal of 9829985 is 5899289.

It is not a de Polignac number, because 9829985 - 2⁴ = 9829969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9829987) 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, 1487 + ... + 4676.

It is an arithmetic number, because the mean of its divisors is an integer number (832140).

Almost surely, 2^9829985 is an apocalyptic number.

It is an amenable number.

9829985 is a deficient number, since it is larger than the sum of its proper divisors (3484255).

9829985 is a wasteful number, since it uses less digits than its factorization.

9829985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6208.

The product of its digits is 466560, while the sum is 50.

The square root of 9829985 is about 3135.2806891888. The cubic root of 9829985 is about 214.2155295017.

The spelling of 9829985 in words is "nine million, eight hundred twenty-nine thousand, nine hundred eighty-five".