816286871 has 2 divisors, whose sum is σ = 816286872. Its totient is φ = 816286870.

The previous prime is 816286829. The next prime is 816286897. The reversal of 816286871 is 178682618.

It is a happy number.

816286871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 816286871 - 2²⁶ = 749178007 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (816288871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 408143435 + 408143436.

It is an arithmetic number, because the mean of its divisors is an integer number (408143436).

Almost surely, 2^816286871 is an apocalyptic number.

816286871 is a deficient number, since it is larger than the sum of its proper divisors (1).

816286871 is an equidigital number, since it uses as much as digits as its factorization.

816286871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 258048, while the sum is 47.

The square root of 816286871 is about 28570.7345197844. The cubic root of 816286871 is about 934.5752390186.

The spelling of 816286871 in words is "eight hundred sixteen million, two hundred eighty-six thousand, eight hundred seventy-one".