8663741 has 2 divisors, whose sum is σ = 8663742. Its totient is φ = 8663740.

The previous prime is 8663719. The next prime is 8663777. The reversal of 8663741 is 1473668.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7722841 + 940900 = 2779^2 + 970^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8663741 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8663701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4331870 + 4331871.

It is an arithmetic number, because the mean of its divisors is an integer number (4331871).

Almost surely, 2^8663741 is an apocalyptic number.

It is an amenable number.

8663741 is a deficient number, since it is larger than the sum of its proper divisors (1).

8663741 is an equidigital number, since it uses as much as digits as its factorization.

8663741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 35.

The square root of 8663741 is about 2943.4233470570. The cubic root of 8663741 is about 205.3848886562.

The spelling of 8663741 in words is "eight million, six hundred sixty-three thousand, seven hundred forty-one".