6863239287 has 6 divisors (see below), whose sum is σ = 9913567872. Its totient is φ = 4575492852.

The previous prime is 6863239283. The next prime is 6863239289. The reversal of 6863239287 is 7829323686.

It is a happy number.

It is not a de Polignac number, because 6863239287 - 2² = 6863239283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6863239283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 381291063 + ... + 381291080.

It is an arithmetic number, because the mean of its divisors is an integer number (1652261312).

Almost surely, 2^6863239287 is an apocalyptic number.

6863239287 is a deficient number, since it is larger than the sum of its proper divisors (3050328585).

6863239287 is a wasteful number, since it uses less digits than its factorization.

6863239287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762582149 (or 762582146 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The square root of 6863239287 is about 82844.6696354087. The cubic root of 6863239287 is about 1900.3913586260.

It can be divided in two parts, 686323 and 9287, that added together give a triangular number (695610 = T₁₁₇₉).

The spelling of 6863239287 in words is "six billion, eight hundred sixty-three million, two hundred thirty-nine thousand, two hundred eighty-seven".