805829 has 4 divisors (see below), whose sum is σ = 810240. Its totient is φ = 801420.

The previous prime is 805811. The next prime is 805843. The reversal of 805829 is 928508.

805829 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 805829 - 2⁸ = 805573 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 805795 and 805804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805859) 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, 1919 + ... + 2300.

It is an arithmetic number, because the mean of its divisors is an integer number (202560).

2⁸⁰⁵⁸²⁹ is an apocalyptic number.

It is an amenable number.

805829 is a deficient number, since it is larger than the sum of its proper divisors (4411).

805829 is a wasteful number, since it uses less digits than its factorization.

805829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4410.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 805829 is about 897.6797870065. The cubic root of 805829 is about 93.0566964572.

The spelling of 805829 in words is "eight hundred five thousand, eight hundred twenty-nine".