9873878 has 8 divisors (see below), whose sum is σ = 16926672. Its totient is φ = 4231656.

The previous prime is 9873859. The next prime is 9873881. The reversal of 9873878 is 8783789.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 352625 + ... + 352652.

It is an arithmetic number, because the mean of its divisors is an integer number (2115834).

Almost surely, 2^9873878 is an apocalyptic number.

9873878 is a deficient number, since it is larger than the sum of its proper divisors (7052794).

9873878 is a wasteful number, since it uses less digits than its factorization.

9873878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705286.

The product of its digits is 677376, while the sum is 50.

The square root of 9873878 is about 3142.2727443683. The cubic root of 9873878 is about 214.5338956040.

The spelling of 9873878 in words is "nine million, eight hundred seventy-three thousand, eight hundred seventy-eight".