807871 has 2 divisors, whose sum is σ = 807872. Its totient is φ = 807870.

The previous prime is 807869. The next prime is 807901. The reversal of 807871 is 178708.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 807871 - 2¹ = 807869 is a prime.

Together with 807869, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (807071) 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 as a sum of consecutive naturals, namely, 403935 + 403936.

It is an arithmetic number, because the mean of its divisors is an integer number (403936).

2⁸⁰⁷⁸⁷¹ is an apocalyptic number.

807871 is a deficient number, since it is larger than the sum of its proper divisors (1).

807871 is an equidigital number, since it uses as much as digits as its factorization.

807871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3136, while the sum is 31.

The square root of 807871 is about 898.8164439973. The cubic root of 807871 is about 93.1352331742.

The spelling of 807871 in words is "eight hundred seven thousand, eight hundred seventy-one".