8389856 has 24 divisors (see below), whose sum is σ = 16601760. Its totient is φ = 4173568.

The previous prime is 8389837. The next prime is 8389877. The reversal of 8389856 is 6589838.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 8389856.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7100 + ... + 8196.

It is an arithmetic number, because the mean of its divisors is an integer number (691740).

Almost surely, 2^8389856 is an apocalyptic number.

It is an amenable number.

8389856 is a deficient number, since it is larger than the sum of its proper divisors (8211904).

8389856 is a wasteful number, since it uses less digits than its factorization.

8389856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346 (or 1338 counting only the distinct ones).

The product of its digits is 414720, while the sum is 47.

The square root of 8389856 is about 2896.5248143249. The cubic root of 8389856 is about 203.1974104285.

The spelling of 8389856 in words is "eight million, three hundred eighty-nine thousand, eight hundred fifty-six".