39976708417 has 2 divisors, whose sum is σ = 39976708418. Its totient is φ = 39976708416.

The previous prime is 39976708397. The next prime is 39976708427. The reversal of 39976708417 is 71480767993.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38550966336 + 1425742081 = 196344^2 + 37759^2 .

It is a cyclic number.

It is not a de Polignac number, because 39976708417 - 2²⁷ = 39842490689 is a prime.

It is not a weakly prime, because it can be changed into another prime (39976708427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19988354208 + 19988354209.

It is an arithmetic number, because the mean of its divisors is an integer number (19988354209).

Almost surely, 2^39976708417 is an apocalyptic number.

It is an amenable number.

39976708417 is a deficient number, since it is larger than the sum of its proper divisors (1).

39976708417 is an equidigital number, since it uses as much as digits as its factorization.

39976708417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16003008, while the sum is 61.

The spelling of 39976708417 in words is "thirty-nine billion, nine hundred seventy-six million, seven hundred eight thousand, four hundred seventeen".