859328489 has 4 divisors (see below), whose sum is σ = 859458900. Its totient is φ = 859198080.

The previous prime is 859328473. The next prime is 859328537. The reversal of 859328489 is 984823958.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 604766464 + 254562025 = 24592^2 + 15955^2 .

It is a cyclic number.

It is not a de Polignac number, because 859328489 - 2⁴ = 859328473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (859328689) 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 3 ways as a sum of consecutive naturals, for example, 54764 + ... + 68685.

It is an arithmetic number, because the mean of its divisors is an integer number (214864725).

Almost surely, 2^859328489 is an apocalyptic number.

It is an amenable number.

859328489 is a deficient number, since it is larger than the sum of its proper divisors (130411).

859328489 is a wasteful number, since it uses less digits than its factorization.

859328489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130410.

The product of its digits is 4976640, while the sum is 56.

The square root of 859328489 is about 29314.3051938810. The cubic root of 859328489 is about 950.7209629661.

The spelling of 859328489 in words is "eight hundred fifty-nine million, three hundred twenty-eight thousand, four hundred eighty-nine".