800671 has 4 divisors (see below), whose sum is σ = 815832. Its totient is φ = 785512.

The previous prime is 800669. The next prime is 800677. The reversal of 800671 is 176008.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 800671 - 2¹ = 800669 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800677) 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, 7501 + ... + 7606.

It is an arithmetic number, because the mean of its divisors is an integer number (203958).

2⁸⁰⁰⁶⁷¹ is an apocalyptic number.

800671 is a deficient number, since it is larger than the sum of its proper divisors (15161).

800671 is a wasteful number, since it uses less digits than its factorization.

800671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15160.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 800671 is about 894.8022127822. The cubic root of 800671 is about 92.8577236368.

Adding to 800671 its reverse (176008), we get a palindrome (976679).

The spelling of 800671 in words is "eight hundred thousand, six hundred seventy-one".