9849985 has 4 divisors (see below), whose sum is σ = 11819988. Its totient is φ = 7879984.

The previous prime is 9849979. The next prime is 9849989. The reversal of 9849985 is 5899489.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3837681 + 6012304 = 1959^2 + 2452^2 .

It is a cyclic number.

It is not a de Polignac number, because 9849985 - 2⁷ = 9849857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9849989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 984994 + ... + 985003.

It is an arithmetic number, because the mean of its divisors is an integer number (2954997).

Almost surely, 2^9849985 is an apocalyptic number.

It is an amenable number.

9849985 is a deficient number, since it is larger than the sum of its proper divisors (1970003).

9849985 is a wasteful number, since it uses less digits than its factorization.

9849985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1970002.

The product of its digits is 933120, while the sum is 52.

The square root of 9849985 is about 3138.4685755954. The cubic root of 9849985 is about 214.3607114209.

The spelling of 9849985 in words is "nine million, eight hundred forty-nine thousand, nine hundred eighty-five".