864857083 has 2 divisors, whose sum is σ = 864857084. Its totient is φ = 864857082.

The previous prime is 864857069. The next prime is 864857093. The reversal of 864857083 is 380758468.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 864857083 - 2⁵ = 864857051 is a prime.

It is not a weakly prime, because it can be changed into another prime (864857033) 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, 432428541 + 432428542.

It is an arithmetic number, because the mean of its divisors is an integer number (432428542).

Almost surely, 2^864857083 is an apocalyptic number.

864857083 is a deficient number, since it is larger than the sum of its proper divisors (1).

864857083 is an equidigital number, since it uses as much as digits as its factorization.

864857083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The square root of 864857083 is about 29408.4525774479. The cubic root of 864857083 is about 952.7554656306.

The spelling of 864857083 in words is "eight hundred sixty-four million, eight hundred fifty-seven thousand, eighty-three".