3916881684 has 60 divisors (see below), whose sum is σ = 10432746324. Its totient is φ = 1280987136.

The previous prime is 3916881667. The next prime is 3916881691. The reversal of 3916881684 is 4861886193.

It can be written as a sum of positive squares in 2 ways, for example, as 3430679184 + 486202500 = 58572^2 + 22050^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 3916881684.

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 96877 + ... + 131220.

Almost surely, 2^3916881684 is an apocalyptic number.

It is an amenable number.

3916881684 is an abundant number, since it is smaller than the sum of its proper divisors (6515864640).

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

3916881684 is a wasteful number, since it uses less digits than its factorization.

3916881684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228166 (or 228155 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 54.

The square root of 3916881684 is about 62584.9956778779. The cubic root of 3916881684 is about 1576.3288268533.

The spelling of 3916881684 in words is "three billion, nine hundred sixteen million, eight hundred eighty-one thousand, six hundred eighty-four".