9983845 has 16 divisors (see below), whose sum is σ = 12867120. Its totient is φ = 7409664.

The previous prime is 9983839. The next prime is 9983867. The reversal of 9983845 is 5483899.

9983845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1723969 + 8259876 = 1313^2 + 2874^2 .

It is a cyclic number.

It is not a de Polignac number, because 9983845 - 2³ = 9983837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9983795 and 9983804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5401 + ... + 7009.

It is an arithmetic number, because the mean of its divisors is an integer number (804195).

Almost surely, 2^9983845 is an apocalyptic number.

It is an amenable number.

9983845 is a deficient number, since it is larger than the sum of its proper divisors (2883275).

9983845 is a wasteful number, since it uses less digits than its factorization.

9983845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704.

The product of its digits is 311040, while the sum is 46.

The square root of 9983845 is about 3159.7222979243. The cubic root of 9983845 is about 215.3273901642.

The spelling of 9983845 in words is "nine million, nine hundred eighty-three thousand, eight hundred forty-five".