6817398971 has 8 divisors (see below), whose sum is σ = 6994056720. Its totient is φ = 6642991872.

The previous prime is 6817398901. The next prime is 6817398977. The reversal of 6817398971 is 1798937186.

6817398971 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 6817398971 - 2¹⁴ = 6817382587 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 6817398971.

It is not an unprimeable number, because it can be changed into a prime (6817398977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556526 + ... + 568643.

It is an arithmetic number, because the mean of its divisors is an integer number (874257090).

Almost surely, 2^6817398971 is an apocalyptic number.

6817398971 is a deficient number, since it is larger than the sum of its proper divisors (176657749).

6817398971 is a wasteful number, since it uses less digits than its factorization.

6817398971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125325.

The product of its digits is 4572288, while the sum is 59.

The square root of 6817398971 is about 82567.5418733052. The cubic root of 6817398971 is about 1896.1509308055.

The spelling of 6817398971 in words is "six billion, eight hundred seventeen million, three hundred ninety-eight thousand, nine hundred seventy-one".