805429 has 4 divisors (see below), whose sum is σ = 847840. Its totient is φ = 763020.

The previous prime is 805421. The next prime is 805451. The reversal of 805429 is 924508.

It is a happy number.

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 805429 - 2³ = 805421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 805397 and 805406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805421) 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, 21177 + ... + 21214.

It is an arithmetic number, because the mean of its divisors is an integer number (211960).

2⁸⁰⁵⁴²⁹ is an apocalyptic number.

It is an amenable number.

805429 is a deficient number, since it is larger than the sum of its proper divisors (42411).

805429 is a wasteful number, since it uses less digits than its factorization.

805429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42410.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 805429 is about 897.4569627564. The cubic root of 805429 is about 93.0412966478.

The spelling of 805429 in words is "eight hundred five thousand, four hundred twenty-nine".