8643200873 has 4 divisors (see below), whose sum is σ = 8647056528. Its totient is φ = 8639345220.

The previous prime is 8643200869. The next prime is 8643200887. The reversal of 8643200873 is 3780023468.

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.

It is a cyclic number.

It is not a de Polignac number, because 8643200873 - 2² = 8643200869 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8643200873.

It is not an unprimeable number, because it can be changed into a prime (8643200173) 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, 1924463 + ... + 1928948.

It is an arithmetic number, because the mean of its divisors is an integer number (2161764132).

Almost surely, 2^8643200873 is an apocalyptic number.

It is an amenable number.

8643200873 is a deficient number, since it is larger than the sum of its proper divisors (3855655).

8643200873 is a wasteful number, since it uses less digits than its factorization.

8643200873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3855654.

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 8643200873 is about 92968.8166698921. The cubic root of 8643200873 is about 2052.2245036075.

The spelling of 8643200873 in words is "eight billion, six hundred forty-three million, two hundred thousand, eight hundred seventy-three".