3988608 has 128 divisors (see below), whose sum is σ = 12337920. Its totient is φ = 1130496.

The previous prime is 3988601. The next prime is 3988619. The reversal of 3988608 is 8068893.

It is a tau number, because it is divible by the number of its divisors (128).

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 3988608.

It is not an unprimeable number, because it can be changed into a prime (3988601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84841 + ... + 84887.

It is an arithmetic number, because the mean of its divisors is an integer number (96390).

Almost surely, 2^3988608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3988608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6168960).

3988608 is an abundant number, since it is smaller than the sum of its proper divisors (8349312).

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

3988608 is a wasteful number, since it uses less digits than its factorization.

3988608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 3988608 is about 1997.1499693313. The cubic root of 3988608 is about 158.5892646349.

The spelling of 3988608 in words is "three million, nine hundred eighty-eight thousand, six hundred eight".