4084993809 has 24 divisors (see below), whose sum is σ = 6553186080. Its totient is φ = 2513839536.

The previous prime is 4084993747. The next prime is 4084993831. The reversal of 4084993809 is 9083994804.

It is not a de Polignac number, because 4084993809 - 2⁸ = 4084993553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4084993859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 443059 + ... + 452184.

It is an arithmetic number, because the mean of its divisors is an integer number (273049420).

Almost surely, 2^4084993809 is an apocalyptic number.

It is an amenable number.

4084993809 is a deficient number, since it is larger than the sum of its proper divisors (2468192271).

4084993809 is a wasteful number, since it uses less digits than its factorization.

4084993809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895278 (or 895259 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 4084993809 is about 63913.9562928160. The cubic root of 4084993809 is about 1598.5656166881.

The spelling of 4084993809 in words is "four billion, eighty-four million, nine hundred ninety-three thousand, eight hundred nine".