806831 has 4 divisors (see below), whose sum is σ = 813312. Its totient is φ = 800352.

The previous prime is 806821. The next prime is 806857. The reversal of 806831 is 138608.

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 806831 - 2¹⁰ = 805807 is a prime.

It is a super-2 number, since 2×806831² = 1301952525122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 806831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806801) 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, 3050 + ... + 3303.

It is an arithmetic number, because the mean of its divisors is an integer number (203328).

2⁸⁰⁶⁸³¹ is an apocalyptic number.

806831 is a deficient number, since it is larger than the sum of its proper divisors (6481).

806831 is a wasteful number, since it uses less digits than its factorization.

806831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6480.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 806831 is about 898.2377190922. The cubic root of 806831 is about 93.0952506208.

The spelling of 806831 in words is "eight hundred six thousand, eight hundred thirty-one".