859975321 has 4 divisors (see below), whose sum is σ = 905237200. Its totient is φ = 814713444.

The previous prime is 859975301. The next prime is 859975343. The reversal of 859975321 is 123579958.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 123579958 = 2 ⋅61789979.

It is a cyclic number.

It is not a de Polignac number, because 859975321 - 2⁵ = 859975289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (859975301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22630911 + ... + 22630948.

It is an arithmetic number, because the mean of its divisors is an integer number (226309300).

Almost surely, 2^859975321 is an apocalyptic number.

It is an amenable number.

859975321 is a deficient number, since it is larger than the sum of its proper divisors (45261879).

859975321 is a wasteful number, since it uses less digits than its factorization.

859975321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45261878.

The product of its digits is 680400, while the sum is 49.

The square root of 859975321 is about 29325.3358207540. The cubic root of 859975321 is about 950.9594447255.

The spelling of 859975321 in words is "eight hundred fifty-nine million, nine hundred seventy-five thousand, three hundred twenty-one".