8239873849 has 16 divisors (see below), whose sum is σ = 9005198400. Its totient is φ = 7509668544.

The previous prime is 8239873847. The next prime is 8239873867. The reversal of 8239873849 is 9483789328.

It is a cyclic number.

It is not a de Polignac number, because 8239873849 - 2¹ = 8239873847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8239873843) 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, 125634 + ... + 179620.

It is an arithmetic number, because the mean of its divisors is an integer number (562824900).

Almost surely, 2^8239873849 is an apocalyptic number.

It is an amenable number.

8239873849 is a deficient number, since it is larger than the sum of its proper divisors (765324551).

8239873849 is a wasteful number, since it uses less digits than its factorization.

8239873849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54312.

The product of its digits is 20901888, while the sum is 61.

The square root of 8239873849 is about 90773.7508809678. The cubic root of 8239873849 is about 2019.7929605958.

The spelling of 8239873849 in words is "eight billion, two hundred thirty-nine million, eight hundred seventy-three thousand, eight hundred forty-nine".