2004684389 has 2 divisors, whose sum is σ = 2004684390. Its totient is φ = 2004684388.

The previous prime is 2004684377. The next prime is 2004684469. The reversal of 2004684389 is 9834864002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1376781025 + 627903364 = 37105^2 + 25058^2 .

It is a cyclic number.

It is not a de Polignac number, because 2004684389 - 2¹⁶ = 2004618853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2004684089) 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 as a sum of consecutive naturals, namely, 1002342194 + 1002342195.

It is an arithmetic number, because the mean of its divisors is an integer number (1002342195).

Almost surely, 2^2004684389 is an apocalyptic number.

It is an amenable number.

2004684389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2004684389 is an equidigital number, since it uses as much as digits as its factorization.

2004684389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 331776, while the sum is 44.

The square root of 2004684389 is about 44773.7019800686. The cubic root of 2004684389 is about 1260.9039429694.

The spelling of 2004684389 in words is "two billion, four million, six hundred eighty-four thousand, three hundred eighty-nine".