806811 has 4 divisors (see below), whose sum is σ = 1075752. Its totient is φ = 537872.

The previous prime is 806807. The next prime is 806821. The reversal of 806811 is 118608.

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 806811 - 2² = 806807 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (806801) 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, 134466 + ... + 134471.

It is an arithmetic number, because the mean of its divisors is an integer number (268938).

2⁸⁰⁶⁸¹¹ is an apocalyptic number.

806811 is a deficient number, since it is larger than the sum of its proper divisors (268941).

806811 is a wasteful number, since it uses less digits than its factorization.

806811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268940.

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 806811 is about 898.2265861129. The cubic root of 806811 is about 93.0944813889.

The spelling of 806811 in words is "eight hundred six thousand, eight hundred eleven".