8106845 has 4 divisors (see below), whose sum is σ = 9728220. Its totient is φ = 6485472.

The previous prime is 8106817. The next prime is 8106871. The reversal of 8106845 is 5486018.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1315609 + 6791236 = 1147^2 + 2606^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8106845 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 810680 + ... + 810689.

It is an arithmetic number, because the mean of its divisors is an integer number (2432055).

Almost surely, 2^8106845 is an apocalyptic number.

It is an amenable number.

8106845 is a deficient number, since it is larger than the sum of its proper divisors (1621375).

8106845 is a wasteful number, since it uses less digits than its factorization.

8106845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621374.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 8106845 is about 2847.2521841242. The cubic root of 8106845 is about 200.8864403133.

The spelling of 8106845 in words is "eight million, one hundred six thousand, eight hundred forty-five".