3988716 has 12 divisors (see below), whose sum is σ = 9307032. Its totient is φ = 1329568.

The previous prime is 3988703. The next prime is 3988717. The reversal of 3988716 is 6178893.

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

It is not an unprimeable number, because it can be changed into a prime (3988717) 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, 166185 + ... + 166208.

It is an arithmetic number, because the mean of its divisors is an integer number (775586).

Almost surely, 2^3988716 is an apocalyptic number.

It is an amenable number.

3988716 is an abundant number, since it is smaller than the sum of its proper divisors (5318316).

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

3988716 is a wasteful number, since it uses less digits than its factorization.

3988716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332400 (or 332398 counting only the distinct ones).

The product of its digits is 72576, while the sum is 42.

The square root of 3988716 is about 1997.1770076786. The cubic root of 3988716 is about 158.5906960019.

It can be divided in two parts, 39887 and 16, that added together give a triangular number (39903 = T₂₈₂).

The spelling of 3988716 in words is "three million, nine hundred eighty-eight thousand, seven hundred sixteen".