9942843 has 4 divisors (see below), whose sum is σ = 13257128. Its totient is φ = 6628560.

The previous prime is 9942797. The next prime is 9942883. The reversal of 9942843 is 3482499.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 9942843 - 2⁸ = 9942587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9942883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1657138 + ... + 1657143.

It is an arithmetic number, because the mean of its divisors is an integer number (3314282).

Almost surely, 2^9942843 is an apocalyptic number.

9942843 is a deficient number, since it is larger than the sum of its proper divisors (3314285).

9942843 is a wasteful number, since it uses less digits than its factorization.

9942843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3314284.

The product of its digits is 62208, while the sum is 39.

The square root of 9942843 is about 3153.2273942740. The cubic root of 9942843 is about 215.0322143905.

The spelling of 9942843 in words is "nine million, nine hundred forty-two thousand, eight hundred forty-three".