3884665687 has 16 divisors (see below), whose sum is σ = 4529986560. Its totient is φ = 3262120992.

The previous prime is 3884665679. The next prime is 3884665717. The reversal of 3884665687 is 7865664883.

It is a cyclic number.

It is not a de Polignac number, because 3884665687 - 2³ = 3884665679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3884665607) 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, 259468 + ... + 274030.

It is an arithmetic number, because the mean of its divisors is an integer number (283124160).

Almost surely, 2^3884665687 is an apocalyptic number.

3884665687 is a deficient number, since it is larger than the sum of its proper divisors (645320873).

3884665687 is a wasteful number, since it uses less digits than its factorization.

3884665687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15342.

The product of its digits is 46448640, while the sum is 61.

The square root of 3884665687 is about 62327.0863028266. The cubic root of 3884665687 is about 1571.9952032294.

The spelling of 3884665687 in words is "three billion, eight hundred eighty-four million, six hundred sixty-five thousand, six hundred eighty-seven".