8105845 has 16 divisors (see below), whose sum is σ = 10668672. Its totient is φ = 5863360.

The previous prime is 8105813. The next prime is 8105869. The reversal of 8105845 is 5485018.

It is not a de Polignac number, because 8105845 - 2⁵ = 8105813 is a prime.

It is an Ulam number.

It is a Duffinian number.

8105845 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15864 + ... + 16366.

It is an arithmetic number, because the mean of its divisors is an integer number (666792).

Almost surely, 2^8105845 is an apocalyptic number.

It is an amenable number.

8105845 is a deficient number, since it is larger than the sum of its proper divisors (2562827).

8105845 is a wasteful number, since it uses less digits than its factorization.

8105845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812.

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 8105845 is about 2847.0765708003. The cubic root of 8105845 is about 200.8781800221.

The spelling of 8105845 in words is "eight million, one hundred five thousand, eight hundred forty-five".