805673 has 4 divisors (see below), whose sum is σ = 878928. Its totient is φ = 732420.

The previous prime is 805639. The next prime is 805687. The reversal of 805673 is 376508.

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 a de Polignac number, because none of the positive numbers 2^k-805673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (805633) 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, 36611 + ... + 36632.

It is an arithmetic number, because the mean of its divisors is an integer number (219732).

2⁸⁰⁵⁶⁷³ is an apocalyptic number.

It is an amenable number.

805673 is a deficient number, since it is larger than the sum of its proper divisors (73255).

805673 is a wasteful number, since it uses less digits than its factorization.

805673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73254.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 805673 is about 897.5928921287. The cubic root of 805673 is about 93.0506911378.

The spelling of 805673 in words is "eight hundred five thousand, six hundred seventy-three".