3986789 has 8 divisors (see below), whose sum is σ = 4443840. Its totient is φ = 3554496.

The previous prime is 3986783. The next prime is 3986803. The reversal of 3986789 is 9876893.

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

It is not a de Polignac number, because 3986789 - 2²⁰ = 2938213 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 (3986783) 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 7 ways as a sum of consecutive naturals, for example, 5849 + ... + 6494.

It is an arithmetic number, because the mean of its divisors is an integer number (555480).

Almost surely, 2^3986789 is an apocalyptic number.

It is an amenable number.

3986789 is a deficient number, since it is larger than the sum of its proper divisors (457051).

3986789 is a wasteful number, since it uses less digits than its factorization.

3986789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12379.

The product of its digits is 653184, while the sum is 50.

The square root of 3986789 is about 1996.6945184479. The cubic root of 3986789 is about 158.5651528198.

The spelling of 3986789 in words is "three million, nine hundred eighty-six thousand, seven hundred eighty-nine".