8553663 has 12 divisors (see below), whose sum is σ = 12411360. Its totient is φ = 5676576.

The previous prime is 8553619. The next prime is 8553673. The reversal of 8553663 is 3663558.

It is not a de Polignac number, because 8553663 - 2⁶ = 8553599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8553673) 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 in 11 ways as a sum of consecutive naturals, for example, 58 + ... + 4136.

It is an arithmetic number, because the mean of its divisors is an integer number (1034280).

Almost surely, 2^8553663 is an apocalyptic number.

8553663 is a deficient number, since it is larger than the sum of its proper divisors (3857697).

8553663 is a wasteful number, since it uses less digits than its factorization.

8553663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4318 (or 4315 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 8553663 is about 2924.6645961546. The cubic root of 8553663 is about 204.5113325977.

It can be divided in two parts, 8553 and 663, that added together give a square (9216 = 96²).

The spelling of 8553663 in words is "eight million, five hundred fifty-three thousand, six hundred sixty-three".