822086887 has 2 divisors, whose sum is σ = 822086888. Its totient is φ = 822086886.

The previous prime is 822086873. The next prime is 822086891. The reversal of 822086887 is 788680228.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-822086887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 822086887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (822086807) 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, 411043443 + 411043444.

It is an arithmetic number, because the mean of its divisors is an integer number (411043444).

Almost surely, 2^822086887 is an apocalyptic number.

822086887 is a deficient number, since it is larger than the sum of its proper divisors (1).

822086887 is an equidigital number, since it uses as much as digits as its factorization.

822086887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 688128, while the sum is 49.

The square root of 822086887 is about 28672.0575996910. The cubic root of 822086887 is about 936.7835163778.

The spelling of 822086887 in words is "eight hundred twenty-two million, eighty-six thousand, eight hundred eighty-seven".