9842845 has 4 divisors (see below), whose sum is σ = 11811420. Its totient is φ = 7874272.

The previous prime is 9842837. The next prime is 9842849. The reversal of 9842845 is 5482489.

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 6610041 + 3232804 = 2571^2 + 1798^2 .

It is a cyclic number.

It is not a de Polignac number, because 9842845 - 2³ = 9842837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9842798 and 9842807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9842849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 984280 + ... + 984289.

It is an arithmetic number, because the mean of its divisors is an integer number (2952855).

Almost surely, 2^9842845 is an apocalyptic number.

It is an amenable number.

9842845 is a deficient number, since it is larger than the sum of its proper divisors (1968575).

9842845 is a wasteful number, since it uses less digits than its factorization.

9842845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1968574.

The product of its digits is 92160, while the sum is 40.

The square root of 9842845 is about 3137.3308719356. The cubic root of 9842845 is about 214.3089040512.

The spelling of 9842845 in words is "nine million, eight hundred forty-two thousand, eight hundred forty-five".