8079999997 has 2 divisors, whose sum is σ = 8079999998. Its totient is φ = 8079999996.

The previous prime is 8079999973. The next prime is 8080000001. The reversal of 8079999997 is 7999999708.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4792239076 + 3287760921 = 69226^2 + 57339^2 .

It is a cyclic number.

It is not a de Polignac number, because 8079999997 - 2³¹ = 5932516349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8079999497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4039999998 + 4039999999.

It is an arithmetic number, because the mean of its divisors is an integer number (4039999999).

Almost surely, 2^8079999997 is an apocalyptic number.

It is an amenable number.

8079999997 is a deficient number, since it is larger than the sum of its proper divisors (1).

8079999997 is an equidigital number, since it uses as much as digits as its factorization.

8079999997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 208324872, while the sum is 76.

The square root of 8079999997 is about 89888.8202002896. The cubic root of 8079999997 is about 2006.6445668358.

The spelling of 8079999997 in words is "eight billion, seventy-nine million, nine hundred ninety-nine thousand, nine hundred ninety-seven".