810429 has 4 divisors (see below), whose sum is σ = 1080576. Its totient is φ = 540284.

The previous prime is 810427. The next prime is 810437. The reversal of 810429 is 924018.

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 810429 - 2¹ = 810427 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 810399 and 810408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135069 + ... + 135074.

It is an arithmetic number, because the mean of its divisors is an integer number (270144).

2⁸¹⁰⁴²⁹ is an apocalyptic number.

It is an amenable number.

810429 is a deficient number, since it is larger than the sum of its proper divisors (270147).

810429 is a wasteful number, since it uses less digits than its factorization.

810429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270146.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 810429 is about 900.2383017846. The cubic root of 810429 is about 93.2334290981.

The spelling of 810429 in words is "eight hundred ten thousand, four hundred twenty-nine".