3909684884 has 12 divisors (see below), whose sum is σ = 7819369824. Its totient is φ = 1675579224.

The previous prime is 3909684881. The next prime is 3909684899. The reversal of 3909684884 is 4884869093.

3909684884 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3909684881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69815774 + ... + 69815829.

It is an arithmetic number, because the mean of its divisors is an integer number (651614152).

Almost surely, 2^3909684884 is an apocalyptic number.

It is an amenable number.

3909684884 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3909684884 is a wasteful number, since it uses less digits than its factorization.

3909684884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139631614 (or 139631612 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 59.

The square root of 3909684884 is about 62527.4730338593. The cubic root of 3909684884 is about 1575.3627966126.

The spelling of 3909684884 in words is "three billion, nine hundred nine million, six hundred eighty-four thousand, eight hundred eighty-four".