8573279843 has 16 divisors (see below), whose sum is σ = 9393135840. Its totient is φ = 7792705536.

The previous prime is 8573279833. The next prime is 8573279903. The reversal of 8573279843 is 3489723758.

It is a cyclic number.

It is not a de Polignac number, because 8573279843 - 2²⁰ = 8572231267 is a prime.

It is a super-2 number, since 2×8573279843² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8573279833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 830 + ... + 130947.

It is an arithmetic number, because the mean of its divisors is an integer number (587070990).

Almost surely, 2^8573279843 is an apocalyptic number.

8573279843 is a deficient number, since it is larger than the sum of its proper divisors (819855997).

8573279843 is a wasteful number, since it uses less digits than its factorization.

8573279843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131926.

The product of its digits is 10160640, while the sum is 56.

The square root of 8573279843 is about 92592.0074466474. The cubic root of 8573279843 is about 2046.6755431179.

The spelling of 8573279843 in words is "eight billion, five hundred seventy-three million, two hundred seventy-nine thousand, eight hundred forty-three".