39716993 has 8 divisors (see below), whose sum is σ = 40920000. Its totient is φ = 38526768.

The previous prime is 39716977. The next prime is 39717023. The reversal of 39716993 is 39961793.

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

It is a cyclic number.

It is not a de Polignac number, because 39716993 - 2⁴ = 39716977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39716923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3308 + ... + 9506.

It is an arithmetic number, because the mean of its divisors is an integer number (5115000).

Almost surely, 2^39716993 is an apocalyptic number.

It is an amenable number.

39716993 is a deficient number, since it is larger than the sum of its proper divisors (1203007).

39716993 is a wasteful number, since it uses less digits than its factorization.

39716993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6391.

The product of its digits is 275562, while the sum is 47.

The square root of 39716993 is about 6302.1419374686. The cubic root of 39716993 is about 341.1867210374.

The spelling of 39716993 in words is "thirty-nine million, seven hundred sixteen thousand, nine hundred ninety-three".