3983988 has 12 divisors (see below), whose sum is σ = 9296000. Its totient is φ = 1327992.

The previous prime is 3983983. The next prime is 3983989. The reversal of 3983988 is 8893893.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3983981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165988 + ... + 166011.

Almost surely, 2^3983988 is an apocalyptic number.

It is an amenable number.

3983988 is an abundant number, since it is smaller than the sum of its proper divisors (5312012).

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

3983988 is a wasteful number, since it uses less digits than its factorization.

3983988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332006 (or 332004 counting only the distinct ones).

The product of its digits is 373248, while the sum is 48.

The square root of 3983988 is about 1995.9929859596. The cubic root of 3983988 is about 158.5280097248.

The spelling of 3983988 in words is "three million, nine hundred eighty-three thousand, nine hundred eighty-eight".