9849 has 12 divisors (see below), whose sum is σ = 15504. Its totient is φ = 5544.

The previous prime is 9839. The next prime is 9851. The reversal of 9849 is 9489.

It is not a de Polignac number, because 9849 - 2⁴ = 9833 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a plaindrome in base 6 and base 16.

It is a nialpdrome in base 11.

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (9829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114 + ... + 180.

It is an arithmetic number, because the mean of its divisors is an integer number (1292).

2⁹⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

9849 is a deficient number, since it is larger than the sum of its proper divisors (5655).

9849 is a wasteful number, since it uses less digits than its factorization.

9849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 77 counting only the distinct ones).

The product of its digits is 2592, while the sum is 30.

The square root of 9849 is about 99.2421281513. The cubic root of 9849 is about 21.4353565815.

It can be divided in two parts, 9 and 849, that added together give a palindrome (858).

The spelling of 9849 in words is "nine thousand, eight hundred forty-nine".