8147006993 has 2 divisors, whose sum is σ = 8147006994. Its totient is φ = 8147006992.

The previous prime is 8147006981. The next prime is 8147007007. The reversal of 8147006993 is 3996007418.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7460986129 + 686020864 = 86377^2 + 26192^2 .

It is a cyclic number.

It is not a de Polignac number, because 8147006993 - 2²⁰ = 8145958417 is a prime.

It is not a weakly prime, because it can be changed into another prime (8147009993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4073503496 + 4073503497.

It is an arithmetic number, because the mean of its divisors is an integer number (4073503497).

Almost surely, 2^8147006993 is an apocalyptic number.

It is an amenable number.

8147006993 is a deficient number, since it is larger than the sum of its proper divisors (1).

8147006993 is an equidigital number, since it uses as much as digits as its factorization.

8147006993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 8147006993 is about 90260.7721715253. The cubic root of 8147006993 is about 2012.1763011546.

The spelling of 8147006993 in words is "eight billion, one hundred forty-seven million, six thousand, nine hundred ninety-three".