859614889 has 12 divisors (see below), whose sum is σ = 1001616084. Its totient is φ = 735592704.

The previous prime is 859614887. The next prime is 859614919. The reversal of 859614889 is 988416958.

It can be written as a sum of positive squares in 2 ways, for example, as 144961600 + 714653289 = 12040^2 + 26733^2 .

It is not a de Polignac number, because 859614889 - 2¹ = 859614887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (859614881) 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 11 ways as a sum of consecutive naturals, for example, 16017 + ... + 44449.

It is an arithmetic number, because the mean of its divisors is an integer number (83468007).

Almost surely, 2^859614889 is an apocalyptic number.

It is an amenable number.

859614889 is a deficient number, since it is larger than the sum of its proper divisors (142001195).

859614889 is a wasteful number, since it uses less digits than its factorization.

859614889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29064 (or 29057 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 58.

The square root of 859614889 is about 29319.1897739347. The cubic root of 859614889 is about 950.8265711021.

The spelling of 859614889 in words is "eight hundred fifty-nine million, six hundred fourteen thousand, eight hundred eighty-nine".