8809663 has 4 divisors (see below), whose sum is σ = 9047800. Its totient is φ = 8571528.

The previous prime is 8809651. The next prime is 8809687. The reversal of 8809663 is 3669088.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8809663 is a prime.

It is a super-2 number, since 2×8809663² = 155220324347138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8809613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119013 + ... + 119086.

It is an arithmetic number, because the mean of its divisors is an integer number (2261950).

Almost surely, 2^8809663 is an apocalyptic number.

8809663 is a deficient number, since it is larger than the sum of its proper divisors (238137).

8809663 is a wasteful number, since it uses less digits than its factorization.

8809663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238136.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 8809663 is about 2968.1076462959. The cubic root of 8809663 is about 206.5315630453.

The spelling of 8809663 in words is "eight million, eight hundred nine thousand, six hundred sixty-three".