3987716 has 12 divisors (see below), whose sum is σ = 7203840. Its totient is φ = 1929480.

The previous prime is 3987677. The next prime is 3987727. The reversal of 3987716 is 6177893.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15956 + ... + 16203.

It is an arithmetic number, because the mean of its divisors is an integer number (600320).

Almost surely, 2^3987716 is an apocalyptic number.

It is an amenable number.

3987716 is a deficient number, since it is larger than the sum of its proper divisors (3216124).

3987716 is a wasteful number, since it uses less digits than its factorization.

3987716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32194 (or 32192 counting only the distinct ones).

The product of its digits is 63504, while the sum is 41.

The square root of 3987716 is about 1996.9266386124. The cubic root of 3987716 is about 158.5774416154.

It can be divided in two parts, 39877 and 16, that added together give a palindrome (39893).

The spelling of 3987716 in words is "three million, nine hundred eighty-seven thousand, seven hundred sixteen".