3987044 has 18 divisors (see below), whose sum is σ = 7414050. Its totient is φ = 1875712.

The previous prime is 3987037. The next prime is 3987077. The reversal of 3987044 is 4407893.

It can be written as a sum of positive squares in 3 ways, for example, as 422500 + 3564544 = 650^2 + 1888^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3986995 and 3987013.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 569 + ... + 2880.

Almost surely, 2^3987044 is an apocalyptic number.

3987044 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

3987044 is a deficient number, since it is larger than the sum of its proper divisors (3427006).

3987044 is a wasteful number, since it uses less digits than its factorization.

3987044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3487 (or 3468 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 3987044 is about 1996.7583729635. The cubic root of 3987044 is about 158.5685334227.

The spelling of 3987044 in words is "three million, nine hundred eighty-seven thousand, forty-four".