8198999971 has 8 divisors (see below), whose sum is σ = 8228239200. Its totient is φ = 8169810432.

The previous prime is 8198999903. The next prime is 8198999993. The reversal of 8198999971 is 1799998918.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8198999971 - 2¹⁹ = 8198475683 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8198999971.

It is not an unprimeable number, because it can be changed into a prime (8198990971) 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 in 7 ways as a sum of consecutive naturals, for example, 335266 + ... + 358888.

It is an arithmetic number, because the mean of its divisors is an integer number (1028529900).

Almost surely, 2^8198999971 is an apocalyptic number.

8198999971 is a deficient number, since it is larger than the sum of its proper divisors (29239229).

8198999971 is a wasteful number, since it uses less digits than its factorization.

8198999971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24845.

The product of its digits is 26453952, while the sum is 70.

The square root of 8198999971 is about 90548.3294765839. The cubic root of 8198999971 is about 2016.4476967572.

The spelling of 8198999971 in words is "eight billion, one hundred ninety-eight million, nine hundred ninety-nine thousand, nine hundred seventy-one".