8549663 has 2 divisors, whose sum is σ = 8549664. Its totient is φ = 8549662.

The previous prime is 8549641. The next prime is 8549683. The reversal of 8549663 is 3669458.

8549663 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8549663 - 2⁶ = 8549599 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8549663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8549683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4274831 + 4274832.

It is an arithmetic number, because the mean of its divisors is an integer number (4274832).

Almost surely, 2^8549663 is an apocalyptic number.

8549663 is a deficient number, since it is larger than the sum of its proper divisors (1).

8549663 is an equidigital number, since it uses as much as digits as its factorization.

8549663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 41.

The square root of 8549663 is about 2923.9806770907. The cubic root of 8549663 is about 204.4794486793.

The spelling of 8549663 in words is "eight million, five hundred forty-nine thousand, six hundred sixty-three".