862868287 has 2 divisors, whose sum is σ = 862868288. Its totient is φ = 862868286.

The previous prime is 862868273. The next prime is 862868297. The reversal of 862868287 is 782868268.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 862868287 - 2¹¹ = 862866239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (862868297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431434143 + 431434144.

It is an arithmetic number, because the mean of its divisors is an integer number (431434144).

Almost surely, 2^862868287 is an apocalyptic number.

862868287 is a deficient number, since it is larger than the sum of its proper divisors (1).

862868287 is an equidigital number, since it uses as much as digits as its factorization.

862868287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4128768, while the sum is 55.

The square root of 862868287 is about 29374.6197762626. The cubic root of 862868287 is about 952.0245970712.

The spelling of 862868287 in words is "eight hundred sixty-two million, eight hundred sixty-eight thousand, two hundred eighty-seven".