8353661 has 2 divisors, whose sum is σ = 8353662. Its totient is φ = 8353660.

The previous prime is 8353649. The next prime is 8353687. The reversal of 8353661 is 1663538.

8353661 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8231161 + 122500 = 2869^2 + 350^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8353661 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8353621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4176830 + 4176831.

It is an arithmetic number, because the mean of its divisors is an integer number (4176831).

Almost surely, 2^8353661 is an apocalyptic number.

It is an amenable number.

8353661 is a deficient number, since it is larger than the sum of its proper divisors (1).

8353661 is an equidigital number, since it uses as much as digits as its factorization.

8353661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 32.

The square root of 8353661 is about 2890.2700565864. The cubic root of 8353661 is about 202.9047819601.

The spelling of 8353661 in words is "eight million, three hundred fifty-three thousand, six hundred sixty-one".