3988630 has 8 divisors (see below), whose sum is σ = 7179552. Its totient is φ = 1595448.

The previous prime is 3988627. The next prime is 3988643. The reversal of 3988630 is 368893.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 3988630.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199422 + ... + 199441.

It is an arithmetic number, because the mean of its divisors is an integer number (897444).

Almost surely, 2^3988630 is an apocalyptic number.

3988630 is a deficient number, since it is larger than the sum of its proper divisors (3190922).

3988630 is a wasteful number, since it uses less digits than its factorization.

3988630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398870.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 3988630 is about 1997.1554771725. The cubic root of 3988630 is about 158.5895562118.

The spelling of 3988630 in words is "three million, nine hundred eighty-eight thousand, six hundred thirty".