8195805 has 12 divisors (see below), whose sum is σ = 14206140. Its totient is φ = 4371072.

The previous prime is 8195801. The next prime is 8195807. The reversal of 8195805 is 5085918.

It can be written as a sum of positive squares in 2 ways, for example, as 2762244 + 5433561 = 1662^2 + 2331^2 .

It is not a de Polignac number, because 8195805 - 2² = 8195801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8195805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8195801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91020 + ... + 91109.

It is an arithmetic number, because the mean of its divisors is an integer number (1183845).

Almost surely, 2^8195805 is an apocalyptic number.

It is an amenable number.

8195805 is a deficient number, since it is larger than the sum of its proper divisors (6010335).

8195805 is a wasteful number, since it uses less digits than its factorization.

8195805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182140 (or 182137 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 36.

The square root of 8195805 is about 2862.8316401773. The cubic root of 8195805 is about 201.6185740870.

The spelling of 8195805 in words is "eight million, one hundred ninety-five thousand, eight hundred five".