3987672 has 32 divisors (see below), whose sum is σ = 10736880. Its totient is φ = 1226880.

The previous prime is 3987649. The next prime is 3987677. The reversal of 3987672 is 2767893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3987677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6079 + ... + 6702.

Almost surely, 2^3987672 is an apocalyptic number.

It is an amenable number.

3987672 is an abundant number, since it is smaller than the sum of its proper divisors (6749208).

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

3987672 is a wasteful number, since it uses less digits than its factorization.

3987672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12803 (or 12799 counting only the distinct ones).

The product of its digits is 127008, while the sum is 42.

The square root of 3987672 is about 1996.9156216526. The cubic root of 3987672 is about 158.5768583715.

The spelling of 3987672 in words is "three million, nine hundred eighty-seven thousand, six hundred seventy-two".