3987767 has 12 divisors (see below), whose sum is σ = 4692240. Its totient is φ = 3378816.

The previous prime is 3987757. The next prime is 3987769. The reversal of 3987767 is 7677893.

It is not a de Polignac number, because 3987767 - 2¹⁶ = 3922231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3987769) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4334 + ... + 5172.

It is an arithmetic number, because the mean of its divisors is an integer number (391020).

Almost surely, 2^3987767 is an apocalyptic number.

3987767 is a deficient number, since it is larger than the sum of its proper divisors (704473).

3987767 is an equidigital number, since it uses as much as digits as its factorization.

3987767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950 (or 943 counting only the distinct ones).

The product of its digits is 444528, while the sum is 47.

The square root of 3987767 is about 1996.9394081944. The cubic root of 3987767 is about 158.5781176427.

The spelling of 3987767 in words is "three million, nine hundred eighty-seven thousand, seven hundred sixty-seven".