809195 has 4 divisors (see below), whose sum is σ = 971040. Its totient is φ = 647352.

The previous prime is 809189. The next prime is 809201. The reversal of 809195 is 591908.

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

It is an interprime number because it is at equal distance from previous prime (809189) and next prime (809201).

It is a cyclic number.

It is not a de Polignac number, because 809195 - 2¹² = 805099 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 809195.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80915 + ... + 80924.

It is an arithmetic number, because the mean of its divisors is an integer number (242760).

2⁸⁰⁹¹⁹⁵ is an apocalyptic number.

809195 is a deficient number, since it is larger than the sum of its proper divisors (161845).

809195 is a wasteful number, since it uses less digits than its factorization.

809195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161844.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 809195 is about 899.5526666071. The cubic root of 809195 is about 93.1860844224.

The spelling of 809195 in words is "eight hundred nine thousand, one hundred ninety-five".