3987065 has 16 divisors (see below), whose sum is σ = 5114880. Its totient is φ = 2976960.

The previous prime is 3987037. The next prime is 3987077. The reversal of 3987065 is 5607893.

It is not a de Polignac number, because 3987065 - 2⁶ = 3987001 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4052 + ... + 4938.

It is an arithmetic number, because the mean of its divisors is an integer number (319680).

Almost surely, 2^3987065 is an apocalyptic number.

It is an amenable number.

3987065 is a deficient number, since it is larger than the sum of its proper divisors (1127815).

3987065 is a wasteful number, since it uses less digits than its factorization.

3987065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 3987065 is about 1996.7636314797. The cubic root of 3987065 is about 158.5688118189.

The spelling of 3987065 in words is "three million, nine hundred eighty-seven thousand, sixty-five".