8609197 has 4 divisors (see below), whose sum is σ = 8841916. Its totient is φ = 8376480.

The previous prime is 8609173. The next prime is 8609207. The reversal of 8609197 is 7919068.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7650756 + 958441 = 2766^2 + 979^2 .

It is a cyclic number.

It is not a de Polignac number, because 8609197 - 2²³ = 220589 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 (8609137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116304 + ... + 116377.

It is an arithmetic number, because the mean of its divisors is an integer number (2210479).

Almost surely, 2^8609197 is an apocalyptic number.

It is an amenable number.

8609197 is a deficient number, since it is larger than the sum of its proper divisors (232719).

8609197 is a wasteful number, since it uses less digits than its factorization.

8609197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232718.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 8609197 is about 2934.1433161998. The cubic root of 8609197 is about 204.9529695801.

The spelling of 8609197 in words is "eight million, six hundred nine thousand, one hundred ninety-seven".