8371711979 has 2 divisors, whose sum is σ = 8371711980. Its totient is φ = 8371711978.

The previous prime is 8371711969. The next prime is 8371711981. The reversal of 8371711979 is 9791171738.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8371711979 - 2⁴ = 8371711963 is a prime.

It is a super-2 number, since 2×8371711979² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 8371711981, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8371711979.

It is not a weakly prime, because it can be changed into another prime (8371711939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4185855989 + 4185855990.

It is an arithmetic number, because the mean of its divisors is an integer number (4185855990).

Almost surely, 2^8371711979 is an apocalyptic number.

8371711979 is a deficient number, since it is larger than the sum of its proper divisors (1).

8371711979 is an equidigital number, since it uses as much as digits as its factorization.

8371711979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 666792, while the sum is 53.

The square root of 8371711979 is about 91497.0599473010. The cubic root of 8371711979 is about 2030.5082551287.

The spelling of 8371711979 in words is "eight billion, three hundred seventy-one million, seven hundred eleven thousand, nine hundred seventy-nine".