9878843 has 4 divisors (see below), whose sum is σ = 10638768. Its totient is φ = 9118920.

The previous prime is 9878839. The next prime is 9878851. The reversal of 9878843 is 3488789.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3488789 = 1103 ⋅3163.

It is a cyclic number.

It is not a de Polignac number, because 9878843 - 2² = 9878839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9878893) 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, 379943 + ... + 379968.

It is an arithmetic number, because the mean of its divisors is an integer number (2659692).

Almost surely, 2^9878843 is an apocalyptic number.

9878843 is a deficient number, since it is larger than the sum of its proper divisors (759925).

9878843 is a wasteful number, since it uses less digits than its factorization.

9878843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759924.

The product of its digits is 387072, while the sum is 47.

The square root of 9878843 is about 3143.0626783442. The cubic root of 9878843 is about 214.5698484587.

The spelling of 9878843 in words is "nine million, eight hundred seventy-eight thousand, eight hundred forty-three".