806699 has 4 divisors (see below), whose sum is σ = 811536. Its totient is φ = 801864.

The previous prime is 806671. The next prime is 806719. The reversal of 806699 is 996608.

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 806699 - 2¹² = 802603 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 806699.

It is not an unprimeable number, because it can be changed into a prime (806609) 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, 2159 + ... + 2504.

It is an arithmetic number, because the mean of its divisors is an integer number (202884).

2⁸⁰⁶⁶⁹⁹ is an apocalyptic number.

806699 is a deficient number, since it is larger than the sum of its proper divisors (4837).

806699 is a wasteful number, since it uses less digits than its factorization.

806699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4836.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 806699 is about 898.1642388784. The cubic root of 806699 is about 93.0901734554.

The spelling of 806699 in words is "eight hundred six thousand, six hundred ninety-nine".