3988628 has 24 divisors (see below), whose sum is σ = 8034432. Its totient is φ = 1697184.

The previous prime is 3988627. The next prime is 3988643. The reversal of 3988628 is 8268893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3988627) 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, 4250 + ... + 5102.

It is an arithmetic number, because the mean of its divisors is an integer number (334768).

Almost surely, 2^3988628 is an apocalyptic number.

It is an amenable number.

3988628 is an abundant number, since it is smaller than the sum of its proper divisors (4045804).

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

3988628 is a wasteful number, since it uses less digits than its factorization.

3988628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031 (or 1029 counting only the distinct ones).

The product of its digits is 165888, while the sum is 44.

The square root of 3988628 is about 1997.1549764603. The cubic root of 3988628 is about 158.5895297048.

The spelling of 3988628 in words is "three million, nine hundred eighty-eight thousand, six hundred twenty-eight".