8573968891 has 4 divisors (see below), whose sum is σ = 8592567984. Its totient is φ = 8555369800.

The previous prime is 8573968883. The next prime is 8573968939. The reversal of 8573968891 is 1988693758.

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 8573968891 - 2³ = 8573968883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8573968691) 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, 9298855 + ... + 9299776.

It is an arithmetic number, because the mean of its divisors is an integer number (2148141996).

Almost surely, 2^8573968891 is an apocalyptic number.

8573968891 is a deficient number, since it is larger than the sum of its proper divisors (18599093).

8573968891 is a wasteful number, since it uses less digits than its factorization.

8573968891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18599092.

The product of its digits is 26127360, while the sum is 64.

The square root of 8573968891 is about 92595.7282546015. The cubic root of 8573968891 is about 2046.7303731610.

The spelling of 8573968891 in words is "eight billion, five hundred seventy-three million, nine hundred sixty-eight thousand, eight hundred ninety-one".