9818842 has 16 divisors (see below), whose sum is σ = 16137792. Its totient is φ = 4443520.

The previous prime is 9818827. The next prime is 9818867. The reversal of 9818842 is 2488189.

It is a junction number, because it is equal to n+sod(n) for n = 9818795 and 9818804.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4938 + ... + 6634.

It is an arithmetic number, because the mean of its divisors is an integer number (1008612).

Almost surely, 2^9818842 is an apocalyptic number.

9818842 is a deficient number, since it is larger than the sum of its proper divisors (6318950).

9818842 is a wasteful number, since it uses less digits than its factorization.

9818842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973.

The product of its digits is 36864, while the sum is 40.

The square root of 9818842 is about 3133.5031514265. The cubic root of 9818842 is about 214.1345559580.

The spelling of 9818842 in words is "nine million, eight hundred eighteen thousand, eight hundred forty-two".