39716987 has 6 divisors (see below), whose sum is σ = 40711044. Its totient is φ = 38746640.

The previous prime is 39716977. The next prime is 39717023. The reversal of 39716987 is 78961793.

39716987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 39716987 - 2⁶ = 39716923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39716977) 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 5 ways as a sum of consecutive naturals, for example, 10133 + ... + 13494.

It is an arithmetic number, because the mean of its divisors is an integer number (6785174).

Almost surely, 2^39716987 is an apocalyptic number.

39716987 is a deficient number, since it is larger than the sum of its proper divisors (994057).

39716987 is an equidigital number, since it uses as much as digits as its factorization.

39716987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23709 (or 23668 counting only the distinct ones).

The product of its digits is 571536, while the sum is 50.

The square root of 39716987 is about 6302.1414614399. The cubic root of 39716987 is about 341.1867038565.

The spelling of 39716987 in words is "thirty-nine million, seven hundred sixteen thousand, nine hundred eighty-seven".