9878243 has 4 divisors (see below), whose sum is σ = 10196928. Its totient is φ = 9559560.

The previous prime is 9878227. The next prime is 9878249. The reversal of 9878243 is 3428789.

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

It is a cyclic number.

It is not a de Polignac number, because 9878243 - 2⁴ = 9878227 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9878243.

It is not an unprimeable number, because it can be changed into a prime (9878249) 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, 159296 + ... + 159357.

It is an arithmetic number, because the mean of its divisors is an integer number (2549232).

Almost surely, 2^9878243 is an apocalyptic number.

9878243 is a deficient number, since it is larger than the sum of its proper divisors (318685).

9878243 is a wasteful number, since it uses less digits than its factorization.

9878243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318684.

The product of its digits is 96768, while the sum is 41.

The square root of 9878243 is about 3142.9672285915. The cubic root of 9878243 is about 214.5655043429.

The spelling of 9878243 in words is "nine million, eight hundred seventy-eight thousand, two hundred forty-three".