3989284 has 12 divisors (see below), whose sum is σ = 7518364. Its totient is φ = 1841184.

The previous prime is 3989267. The next prime is 3989287. The reversal of 3989284 is 4829893.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1822500 + 2166784 = 1350^2 + 1472^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3989284.

It is not an unprimeable number, because it can be changed into a prime (3989287) 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 3 ways as a sum of consecutive naturals, for example, 38307 + ... + 38410.

Almost surely, 2^3989284 is an apocalyptic number.

It is an amenable number.

3989284 is a deficient number, since it is larger than the sum of its proper divisors (3529080).

3989284 is a wasteful number, since it uses less digits than its factorization.

3989284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76734 (or 76732 counting only the distinct ones).

The product of its digits is 124416, while the sum is 43.

The square root of 3989284 is about 1997.3192033323. The cubic root of 3989284 is about 158.5982235070.

The spelling of 3989284 in words is "three million, nine hundred eighty-nine thousand, two hundred eighty-four".