853989359 has 4 divisors (see below), whose sum is σ = 854986704. Its totient is φ = 852992016.

The previous prime is 853989347. The next prime is 853989401. The reversal of 853989359 is 953989358.

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

It is a cyclic number.

It is not a de Polignac number, because 853989359 - 2⁴ = 853989343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 853989298 and 853989307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853989329) 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, 497387 + ... + 499100.

It is an arithmetic number, because the mean of its divisors is an integer number (213746676).

Almost surely, 2^853989359 is an apocalyptic number.

853989359 is a deficient number, since it is larger than the sum of its proper divisors (997345).

853989359 is an equidigital number, since it uses as much as digits as its factorization.

853989359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997344.

The product of its digits is 10497600, while the sum is 59.

The square root of 853989359 is about 29223.0963280758. The cubic root of 853989359 is about 948.7478828219.

Subtracting 853989359 from its reverse (953989358), we obtain a palindrome (99999999).

The spelling of 853989359 in words is "eight hundred fifty-three million, nine hundred eighty-nine thousand, three hundred fifty-nine".