9855844 has 12 divisors (see below), whose sum is σ = 17270764. Its totient is φ = 4921344.

The previous prime is 9855823. The next prime is 9855863. The reversal of 9855844 is 4485589.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3655744 + 6200100 = 1912^2 + 2490^2 .

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 9855844.

It is a congruent number.

It is an unprimeable number.

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, 3544 + ... + 5680.

Almost surely, 2^9855844 is an apocalyptic number.

It is an amenable number.

9855844 is a deficient number, since it is larger than the sum of its proper divisors (7414920).

9855844 is a wasteful number, since it uses less digits than its factorization.

9855844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3294 (or 3292 counting only the distinct ones).

The product of its digits is 230400, while the sum is 43.

The square root of 9855844 is about 3139.4018538569. The cubic root of 9855844 is about 214.4032052409.

The spelling of 9855844 in words is "nine million, eight hundred fifty-five thousand, eight hundred forty-four".