806671 has 2 divisors, whose sum is σ = 806672. Its totient is φ = 806670.

The previous prime is 806657. The next prime is 806719. The reversal of 806671 is 176608.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 806671 - 2⁵ = 806639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (806371) 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 as a sum of consecutive naturals, namely, 403335 + 403336.

It is an arithmetic number, because the mean of its divisors is an integer number (403336).

2⁸⁰⁶⁶⁷¹ is an apocalyptic number.

806671 is a deficient number, since it is larger than the sum of its proper divisors (1).

806671 is an equidigital number, since it uses as much as digits as its factorization.

806671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 806671 is about 898.1486513935. The cubic root of 806671 is about 93.0890964097.

The spelling of 806671 in words is "eight hundred six thousand, six hundred seventy-one".