8664193 has 2 divisors, whose sum is σ = 8664194. Its totient is φ = 8664192.

The previous prime is 8664181. The next prime is 8664223. The reversal of 8664193 is 3914668.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7436529 + 1227664 = 2727^2 + 1108^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8664193 is a prime.

It is the 2944-th Hogben number.

It is not a weakly prime, because it can be changed into another prime (8661193) by changing a digit.

It is a nontrivial repunit in base 2943.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4332096 + 4332097.

It is an arithmetic number, because the mean of its divisors is an integer number (4332097).

Almost surely, 2^8664193 is an apocalyptic number.

It is an amenable number.

8664193 is a deficient number, since it is larger than the sum of its proper divisors (1).

8664193 is an equidigital number, since it uses as much as digits as its factorization.

8664193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 37.

The square root of 8664193 is about 2943.5001273994. The cubic root of 8664193 is about 205.3884603371.

The spelling of 8664193 in words is "eight million, six hundred sixty-four thousand, one hundred ninety-three".