864854339 has 2 divisors, whose sum is σ = 864854340. Its totient is φ = 864854338.

The previous prime is 864854267. The next prime is 864854351. The reversal of 864854339 is 933458468.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 864854339 - 2⁸ = 864854083 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (864854359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432427169 + 432427170.

It is an arithmetic number, because the mean of its divisors is an integer number (432427170).

Almost surely, 2^864854339 is an apocalyptic number.

864854339 is a deficient number, since it is larger than the sum of its proper divisors (1).

864854339 is an equidigital number, since it uses as much as digits as its factorization.

864854339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2488320, while the sum is 50.

The square root of 864854339 is about 29408.4059241571. The cubic root of 864854339 is about 952.7544580022.

The spelling of 864854339 in words is "eight hundred sixty-four million, eight hundred fifty-four thousand, three hundred thirty-nine".