810673 has 4 divisors (see below), whose sum is σ = 853360. Its totient is φ = 767988.

The previous prime is 810671. The next prime is 810697. The reversal of 810673 is 376018.

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 810673 - 2¹ = 810671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (810671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21315 + ... + 21352.

It is an arithmetic number, because the mean of its divisors is an integer number (213340).

2⁸¹⁰⁶⁷³ is an apocalyptic number.

It is an amenable number.

810673 is a deficient number, since it is larger than the sum of its proper divisors (42687).

810673 is a wasteful number, since it uses less digits than its factorization.

810673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42686.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 810673 is about 900.3738112584. The cubic root of 810673 is about 93.2427849142.

The spelling of 810673 in words is "eight hundred ten thousand, six hundred seventy-three".