809329 has 4 divisors (see below), whose sum is σ = 820800. Its totient is φ = 797860.

The previous prime is 809323. The next prime is 809339. The reversal of 809329 is 923908.

It is a happy number.

809329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 809329 - 2⁵ = 809297 is a prime.

It is a Smith number, since the sum of its digits (31) 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 self number, because there is not a number n which added to its sum of digits gives 809329.

It is not an unprimeable number, because it can be changed into a prime (809323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5629 + ... + 5770.

It is an arithmetic number, because the mean of its divisors is an integer number (205200).

2⁸⁰⁹³²⁹ is an apocalyptic number.

It is an amenable number.

809329 is a deficient number, since it is larger than the sum of its proper divisors (11471).

809329 is a wasteful number, since it uses less digits than its factorization.

809329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11470.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 809329 is about 899.6271449884. The cubic root of 809329 is about 93.1912279070.

It can be divided in two parts, 80 and 9329, that added together give a square (9409 = 97²).

The spelling of 809329 in words is "eight hundred nine thousand, three hundred twenty-nine".