8105906 has 16 divisors (see below), whose sum is σ = 13319640. Its totient is φ = 3682560.

The previous prime is 8105899. The next prime is 8105921. The reversal of 8105906 is 6095018.

It can be written as a sum of positive squares in 4 ways, for example, as 8094025 + 11881 = 2845^2 + 109^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3125 + ... + 5096.

Almost surely, 2^8105906 is an apocalyptic number.

8105906 is a deficient number, since it is larger than the sum of its proper divisors (5213734).

8105906 is a wasteful number, since it uses less digits than its factorization.

8105906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8269.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 8105906 is about 2847.0872835233. The cubic root of 8105906 is about 200.8786839194.

The spelling of 8105906 in words is "eight million, one hundred five thousand, nine hundred six".