811029 has 4 divisors (see below), whose sum is σ = 1081376. Its totient is φ = 540684.

The previous prime is 810989. The next prime is 811037. The reversal of 811029 is 920118.

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 not a de Polignac number, because 811029 - 2⁹ = 810517 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 810996 and 811014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135169 + ... + 135174.

It is an arithmetic number, because the mean of its divisors is an integer number (270344).

2⁸¹¹⁰²⁹ is an apocalyptic number.

It is an amenable number.

811029 is a deficient number, since it is larger than the sum of its proper divisors (270347).

811029 is a wasteful number, since it uses less digits than its factorization.

811029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270346.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 811029 is about 900.5714852248. The cubic root of 811029 is about 93.2564318362.

The spelling of 811029 in words is "eight hundred eleven thousand, twenty-nine".