863084839 has 2 divisors, whose sum is σ = 863084840. Its totient is φ = 863084838.

The previous prime is 863084819. The next prime is 863084851. The reversal of 863084839 is 938480368.

863084839 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 863084839 - 2¹¹ = 863082791 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 863084792 and 863084801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (863084819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431542419 + 431542420.

It is an arithmetic number, because the mean of its divisors is an integer number (431542420).

Almost surely, 2^863084839 is an apocalyptic number.

863084839 is a deficient number, since it is larger than the sum of its proper divisors (1).

863084839 is an equidigital number, since it uses as much as digits as its factorization.

863084839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 995328, while the sum is 49.

The square root of 863084839 is about 29378.3055842232. The cubic root of 863084839 is about 952.1042328585.

The spelling of 863084839 in words is "eight hundred sixty-three million, eighty-four thousand, eight hundred thirty-nine".