809834 has 8 divisors (see below), whose sum is σ = 1235520. Its totient is φ = 397996.

The previous prime is 809833. The next prime is 809839. The reversal of 809834 is 438908.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×809834² = 1311662215112, which contains 22 as substring.

It is a Curzon number.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 809834.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 809834.

It is not an unprimeable number, because it can be changed into a prime (809833) by changing a digit.

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, 3314 + ... + 3549.

It is an arithmetic number, because the mean of its divisors is an integer number (154440).

2⁸⁰⁹⁸³⁴ is an apocalyptic number.

809834 is a deficient number, since it is larger than the sum of its proper divisors (425686).

809834 is a wasteful number, since it uses less digits than its factorization.

809834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6924.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 809834 is about 899.9077730523. The cubic root of 809834 is about 93.2106068350.

The spelling of 809834 in words is "eight hundred nine thousand, eight hundred thirty-four".