8199085 has 4 divisors (see below), whose sum is σ = 9838908. Its totient is φ = 6559264.

The previous prime is 8199077. The next prime is 8199091. The reversal of 8199085 is 5809918.

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 1261129 + 6937956 = 1123^2 + 2634^2 .

It is a cyclic number.

It is not a de Polignac number, because 8199085 - 2³ = 8199077 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

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, 819904 + ... + 819913.

It is an arithmetic number, because the mean of its divisors is an integer number (2459727).

Almost surely, 2^8199085 is an apocalyptic number.

It is an amenable number.

8199085 is a deficient number, since it is larger than the sum of its proper divisors (1639823).

8199085 is a wasteful number, since it uses less digits than its factorization.

8199085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639822.

The product of its (nonzero) digits is 25920, while the sum is 40.

The square root of 8199085 is about 2863.4044422680. The cubic root of 8199085 is about 201.6454667361.

The spelling of 8199085 in words is "eight million, one hundred ninety-nine thousand, eighty-five".