8105904243 has 12 divisors (see below), whose sum is σ = 11980820280. Its totient is φ = 5278262976.

The previous prime is 8105904229. The next prime is 8105904253. The reversal of 8105904243 is 3424095018.

It is not a de Polignac number, because 8105904243 - 2⁴ = 8105904227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8105904198 and 8105904207.

It is not an unprimeable number, because it can be changed into a prime (8105904223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10472358 + ... + 10473131.

It is an arithmetic number, because the mean of its divisors is an integer number (998401690).

Almost surely, 2^8105904243 is an apocalyptic number.

8105904243 is a deficient number, since it is larger than the sum of its proper divisors (3874916037).

8105904243 is a wasteful number, since it uses less digits than its factorization.

8105904243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20945538 (or 20945535 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 8105904243 is about 90032.7953747966. The cubic root of 8105904243 is about 2008.7866940550.

The spelling of 8105904243 in words is "eight billion, one hundred five million, nine hundred four thousand, two hundred forty-three".