8243043805 has 8 divisors (see below), whose sum is σ = 9905414400. Its totient is φ = 6585260496.

The previous prime is 8243043803. The next prime is 8243043821. The reversal of 8243043805 is 5083403428.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8243043805 - 2¹ = 8243043803 is a prime.

It is a super-2 number, since 2×8243043805² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8243043803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1142865 + ... + 1150054.

It is an arithmetic number, because the mean of its divisors is an integer number (1238176800).

Almost surely, 2^8243043805 is an apocalyptic number.

It is an amenable number.

8243043805 is a deficient number, since it is larger than the sum of its proper divisors (1662370595).

8243043805 is a wasteful number, since it uses less digits than its factorization.

8243043805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293643.

The product of its (nonzero) digits is 92160, while the sum is 37.

The square root of 8243043805 is about 90791.2099544884. The cubic root of 8243043805 is about 2020.0519384254.

The spelling of 8243043805 in words is "eight billion, two hundred forty-three million, forty-three thousand, eight hundred five".