8173856 has 24 divisors (see below), whose sum is σ = 16193520. Its totient is φ = 4061248.

The previous prime is 8173811. The next prime is 8173859. The reversal of 8173856 is 6583718.

It is a super-3 number, since 3×8173856³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (8173859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5015 + ... + 6441.

It is an arithmetic number, because the mean of its divisors is an integer number (674730).

Almost surely, 2^8173856 is an apocalyptic number.

It is an amenable number.

8173856 is a deficient number, since it is larger than the sum of its proper divisors (8019664).

8173856 is a wasteful number, since it uses less digits than its factorization.

8173856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616 (or 1608 counting only the distinct ones).

The product of its digits is 40320, while the sum is 38.

The square root of 8173856 is about 2858.9956278386. The cubic root of 8173856 is about 201.4384297967.

It can be divided in two parts, 81 and 73856, that added together give a palindrome (73937).

The spelling of 8173856 in words is "eight million, one hundred seventy-three thousand, eight hundred fifty-six".