39689746 has 16 divisors (see below), whose sum is σ = 63092160. Its totient is φ = 18673200.

The previous prime is 39689737. The next prime is 39689807. The reversal of 39689746 is 64798693.

39689746 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 = 39689693 and 39689702.

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 7 ways as a sum of consecutive naturals, for example, 2280 + ... + 9196.

It is an arithmetic number, because the mean of its divisors is an integer number (3943260).

Almost surely, 2^39689746 is an apocalyptic number.

39689746 is a deficient number, since it is larger than the sum of its proper divisors (23402414).

39689746 is a wasteful number, since it uses less digits than its factorization.

39689746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7089.

The product of its digits is 1959552, while the sum is 52.

The square root of 39689746 is about 6299.9798412376. The cubic root of 39689746 is about 341.1086818864.

The spelling of 39689746 in words is "thirty-nine million, six hundred eighty-nine thousand, seven hundred forty-six".