3987012 has 12 divisors (see below), whose sum is σ = 9303056. Its totient is φ = 1329000.

The previous prime is 3987001. The next prime is 3987013. The reversal of 3987012 is 2107893.

It is a happy number.

3987012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (3987013) 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, 166114 + ... + 166137.

Almost surely, 2^3987012 is an apocalyptic number.

It is an amenable number.

3987012 is an abundant number, since it is smaller than the sum of its proper divisors (5316044).

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

3987012 is a wasteful number, since it uses less digits than its factorization.

3987012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332258 (or 332256 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 3987012 is about 1996.7503599599. The cubic root of 3987012 is about 158.5681091981.

The spelling of 3987012 in words is "three million, nine hundred eighty-seven thousand, twelve".