864832019 has 2 divisors, whose sum is σ = 864832020. Its totient is φ = 864832018.

The previous prime is 864832013. The next prime is 864832037. The reversal of 864832019 is 910238468.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 864832019 - 2²⁰ = 863783443 is a prime.

It is a super-2 number, since 2×864832019² = 1495868842175232722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (864832013) 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, 432416009 + 432416010.

It is an arithmetic number, because the mean of its divisors is an integer number (432416010).

Almost surely, 2^864832019 is an apocalyptic number.

864832019 is a deficient number, since it is larger than the sum of its proper divisors (1).

864832019 is an equidigital number, since it uses as much as digits as its factorization.

864832019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 864832019 is about 29408.0264383722. The cubic root of 864832019 is about 952.7462617617.

The spelling of 864832019 in words is "eight hundred sixty-four million, eight hundred thirty-two thousand, nineteen".