39688630 has 8 divisors (see below), whose sum is σ = 71439552. Its totient is φ = 15875448.

The previous prime is 39688619. The next prime is 39688661. The reversal of 39688630 is 3688693.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1984422 + ... + 1984441.

It is an arithmetic number, because the mean of its divisors is an integer number (8929944).

Almost surely, 2^39688630 is an apocalyptic number.

39688630 is a deficient number, since it is larger than the sum of its proper divisors (31750922).

39688630 is a wasteful number, since it uses less digits than its factorization.

39688630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3968870.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 39688630 is about 6299.8912689030. The cubic root of 39688630 is about 341.1054847478.

The spelling of 39688630 in words is "thirty-nine million, six hundred eighty-eight thousand, six hundred thirty".