39968107 has 2 divisors, whose sum is σ = 39968108. Its totient is φ = 39968106.

The previous prime is 39968099. The next prime is 39968111. The reversal of 39968107 is 70186993.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 39968107 - 2³ = 39968099 is a prime.

It is not a weakly prime, because it can be changed into another prime (39968197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19984053 + 19984054.

It is an arithmetic number, because the mean of its divisors is an integer number (19984054).

Almost surely, 2^39968107 is an apocalyptic number.

39968107 is a deficient number, since it is larger than the sum of its proper divisors (1).

39968107 is an equidigital number, since it uses as much as digits as its factorization.

39968107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 39968107 is about 6322.0334545145. The cubic root of 39968107 is about 341.9042713959.

The spelling of 39968107 in words is "thirty-nine million, nine hundred sixty-eight thousand, one hundred seven".