3666987859 has 8 divisors (see below), whose sum is σ = 3869208000. Its totient is φ = 3465689832.

The previous prime is 3666987829. The next prime is 3666987869. The reversal of 3666987859 is 9587896663.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3666987859 - 2¹⁹ = 3666463571 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3666987794 and 3666987803.

It is not an unprimeable number, because it can be changed into a prime (3666987809) 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 7 ways as a sum of consecutive naturals, for example, 222349 + ... + 238270.

It is an arithmetic number, because the mean of its divisors is an integer number (483651000).

Almost surely, 2^3666987859 is an apocalyptic number.

3666987859 is a deficient number, since it is larger than the sum of its proper divisors (202220141).

3666987859 is a wasteful number, since it uses less digits than its factorization.

3666987859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461057.

The product of its digits is 117573120, while the sum is 67.

The square root of 3666987859 is about 60555.6591822763. The cubic root of 3666987859 is about 1542.0666943709.

The spelling of 3666987859 in words is "three billion, six hundred sixty-six million, nine hundred eighty-seven thousand, eight hundred fifty-nine".