8259984939 has 16 divisors (see below), whose sum is σ = 11932348032. Its totient is φ = 5062205568.

The previous prime is 8259984911. The next prime is 8259984959. The reversal of 8259984939 is 9394899528.

It is not a de Polignac number, because 8259984939 - 2⁹ = 8259984427 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8259984939.

It is not an unprimeable number, because it can be changed into a prime (8259984959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1881069 + ... + 1885454.

It is an arithmetic number, because the mean of its divisors is an integer number (745771752).

Almost surely, 2^8259984939 is an apocalyptic number.

8259984939 is a deficient number, since it is larger than the sum of its proper divisors (3672363093).

8259984939 is a wasteful number, since it uses less digits than its factorization.

8259984939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3766586.

The product of its digits is 50388480, while the sum is 66.

The square root of 8259984939 is about 90884.4592821017. The cubic root of 8259984939 is about 2021.4348641885.

The spelling of 8259984939 in words is "eight billion, two hundred fifty-nine million, nine hundred eighty-four thousand, nine hundred thirty-nine".