39691716 has 12 divisors (see below), whose sum is σ = 92614032. Its totient is φ = 13230568.

The previous prime is 39691711. The next prime is 39691727. The reversal of 39691716 is 61719693.

39691716 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (39691711) 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 3 ways as a sum of consecutive naturals, for example, 1653810 + ... + 1653833.

It is an arithmetic number, because the mean of its divisors is an integer number (7717836).

Almost surely, 2^39691716 is an apocalyptic number.

It is an amenable number.

39691716 is an abundant number, since it is smaller than the sum of its proper divisors (52922316).

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

39691716 is a wasteful number, since it uses less digits than its factorization.

39691716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3307650 (or 3307648 counting only the distinct ones).

The product of its digits is 61236, while the sum is 42.

The square root of 39691716 is about 6300.1361890042. The cubic root of 39691716 is about 341.1143254346.

The spelling of 39691716 in words is "thirty-nine million, six hundred ninety-one thousand, seven hundred sixteen".