3987031216 has 60 divisors (see below), whose sum is σ = 9514701288. Its totient is φ = 1608208896.

The previous prime is 3987031211. The next prime is 3987031253. The reversal of 3987031216 is 6121307893.

It is not an unprimeable number, because it can be changed into a prime (3987031211) 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, 136246 + ... + 162901.

Almost surely, 2^3987031216 is an apocalyptic number.

It is an amenable number.

3987031216 is an abundant number, since it is smaller than the sum of its proper divisors (5527670072).

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

3987031216 is a wasteful number, since it uses less digits than its factorization.

3987031216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299186 (or 299173 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 3987031216 is about 63142.9427252167. The cubic root of 3987031216 is about 1585.6836394524.

The spelling of 3987031216 in words is "three billion, nine hundred eighty-seven million, thirty-one thousand, two hundred sixteen".