8321470197 has 4 divisors (see below), whose sum is σ = 11095293600. Its totient is φ = 5547646796.

The previous prime is 8321470189. The next prime is 8321470217. The reversal of 8321470197 is 7910741238.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8321470197 - 2³ = 8321470189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8321470187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1386911697 + ... + 1386911702.

It is an arithmetic number, because the mean of its divisors is an integer number (2773823400).

Almost surely, 2^8321470197 is an apocalyptic number.

It is an amenable number.

8321470197 is a deficient number, since it is larger than the sum of its proper divisors (2773823403).

8321470197 is a wasteful number, since it uses less digits than its factorization.

8321470197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2773823402.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 8321470197 is about 91222.0927023712. The cubic root of 8321470197 is about 2026.4381550913.

The spelling of 8321470197 in words is "eight billion, three hundred twenty-one million, four hundred seventy thousand, one hundred ninety-seven".