3984789 has 8 divisors (see below), whose sum is σ = 5456800. Its totient is φ = 2584656.

The previous prime is 3984781. The next prime is 3984791. The reversal of 3984789 is 9874893.

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

It is not a de Polignac number, because 3984789 - 2³ = 3984781 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 (3984781) 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, 17839 + ... + 18060.

It is an arithmetic number, because the mean of its divisors is an integer number (682100).

Almost surely, 2^3984789 is an apocalyptic number.

It is an amenable number.

3984789 is a deficient number, since it is larger than the sum of its proper divisors (1472011).

3984789 is a wasteful number, since it uses less digits than its factorization.

3984789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35939.

The product of its digits is 435456, while the sum is 48.

The square root of 3984789 is about 1996.1936278828. The cubic root of 3984789 is about 158.5386332865.

The spelling of 3984789 in words is "three million, nine hundred eighty-four thousand, seven hundred eighty-nine".