3986820879 has 16 divisors (see below), whose sum is σ = 5354400000. Its totient is φ = 2638619136.

The previous prime is 3986820833. The next prime is 3986820889. The reversal of 3986820879 is 9780286893.

It is not a de Polignac number, because 3986820879 - 2⁹ = 3986820367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3986820829) 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 15 ways as a sum of consecutive naturals, for example, 282022 + ... + 295820.

It is an arithmetic number, because the mean of its divisors is an integer number (334650000).

Almost surely, 2^3986820879 is an apocalyptic number.

3986820879 is a deficient number, since it is larger than the sum of its proper divisors (1367579121).

3986820879 is a wasteful number, since it uses less digits than its factorization.

3986820879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14494.

The product of its (nonzero) digits is 10450944, while the sum is 60.

The square root of 3986820879 is about 63141.2771410272. The cubic root of 3986820879 is about 1585.6557545604.

The spelling of 3986820879 in words is "three billion, nine hundred eighty-six million, eight hundred twenty thousand, eight hundred seventy-nine".