9847842 has 16 divisors (see below), whose sum is σ = 19973952. Its totient is φ = 3236240.

The previous prime is 9847829. The next prime is 9847847. The reversal of 9847842 is 2487489.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 9847794 and 9847803.

It is not an unprimeable number, because it can be changed into a prime (9847847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11133 + ... + 11984.

It is an arithmetic number, because the mean of its divisors is an integer number (1248372).

Almost surely, 2^9847842 is an apocalyptic number.

9847842 is an abundant number, since it is smaller than the sum of its proper divisors (10126110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9847842 is a wasteful number, since it uses less digits than its factorization.

9847842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23193.

The product of its digits is 129024, while the sum is 42.

The square root of 9847842 is about 3138.1271484757. The cubic root of 9847842 is about 214.3451645843.

The spelling of 9847842 in words is "nine million, eight hundred forty-seven thousand, eight hundred forty-two".