8243197 has 4 divisors (see below), whose sum is σ = 8251740. Its totient is φ = 8234656.

The previous prime is 8243167. The next prime is 8243201. The reversal of 8243197 is 7913428.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 285156 + 7958041 = 534^2 + 2821^2 .

It is a cyclic number.

It is not a de Polignac number, because 8243197 - 2⁷ = 8243069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8243107) 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, 2608 + ... + 4825.

It is an arithmetic number, because the mean of its divisors is an integer number (2062935).

Almost surely, 2^8243197 is an apocalyptic number.

It is an amenable number.

8243197 is a deficient number, since it is larger than the sum of its proper divisors (8543).

8243197 is a wasteful number, since it uses less digits than its factorization.

8243197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8542.

The product of its digits is 12096, while the sum is 34.

The square root of 8243197 is about 2871.0968287398. The cubic root of 8243197 is about 202.0064452409.

It can be divided in two parts, 82431 and 97, that added together give a palindrome (82528).

The spelling of 8243197 in words is "eight million, two hundred forty-three thousand, one hundred ninety-seven".