39631634 has 16 divisors (see below), whose sum is σ = 68439168. Its totient is φ = 16860192.

The previous prime is 39631633. The next prime is 39631643. The reversal of 39631634 is 43613693.

39631634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 39631594 and 39631603.

It is not an unprimeable number, because it can be changed into a prime (39631633) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8414 + ... + 12249.

It is an arithmetic number, because the mean of its divisors is an integer number (4277448).

Almost surely, 2^39631634 is an apocalyptic number.

39631634 is a deficient number, since it is larger than the sum of its proper divisors (28807534).

39631634 is a wasteful number, since it uses less digits than its factorization.

39631634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20809.

The product of its digits is 34992, while the sum is 35.

The square root of 39631634 is about 6295.3660735497. The cubic root of 39631634 is about 340.9421217374.

The spelling of 39631634 in words is "thirty-nine million, six hundred thirty-one thousand, six hundred thirty-four".