8663273 has 2 divisors, whose sum is σ = 8663274. Its totient is φ = 8663272.

The previous prime is 8663261. The next prime is 8663279. The reversal of 8663273 is 3723668.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7118224 + 1545049 = 2668^2 + 1243^2 .

It is a cyclic number.

It is not a de Polignac number, because 8663273 - 2⁶ = 8663209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8663279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4331636 + 4331637.

It is an arithmetic number, because the mean of its divisors is an integer number (4331637).

Almost surely, 2^8663273 is an apocalyptic number.

It is an amenable number.

8663273 is a deficient number, since it is larger than the sum of its proper divisors (1).

8663273 is an equidigital number, since it uses as much as digits as its factorization.

8663273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 35.

The square root of 8663273 is about 2943.3438467158. The cubic root of 8663273 is about 205.3811904132.

The spelling of 8663273 in words is "eight million, six hundred sixty-three thousand, two hundred seventy-three".