3989660 has 12 divisors (see below), whose sum is σ = 8378328. Its totient is φ = 1595856.

The previous prime is 3989653. The next prime is 3989663. The reversal of 3989660 is 669893.

3989660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3989663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99722 + ... + 99761.

It is an arithmetic number, because the mean of its divisors is an integer number (698194).

Almost surely, 2^3989660 is an apocalyptic number.

It is an amenable number.

3989660 is an abundant number, since it is smaller than the sum of its proper divisors (4388668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3989660 is a wasteful number, since it uses less digits than its factorization.

3989660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199492 (or 199490 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 3989660 is about 1997.4133272811. The cubic root of 3989660 is about 158.6032061103.

The spelling of 3989660 in words is "three million, nine hundred eighty-nine thousand, six hundred sixty".