8489663 has 16 divisors (see below), whose sum is σ = 10812480. Its totient is φ = 6483456.

The previous prime is 8489659. The next prime is 8489729. The reversal of 8489663 is 3669848.

8489663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 204³-1.

It is not a de Polignac number, because 8489663 - 2² = 8489659 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8489603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1031 + ... + 4247.

It is an arithmetic number, because the mean of its divisors is an integer number (675780).

Almost surely, 2^8489663 is an apocalyptic number.

8489663 is a deficient number, since it is larger than the sum of its proper divisors (2322817).

8489663 is a wasteful number, since it uses less digits than its factorization.

8489663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3266.

The product of its digits is 248832, while the sum is 44.

The square root of 8489663 is about 2913.7026272425. The cubic root of 8489663 is about 203.9999919903. Note that the first 5 decimals are identical.

The spelling of 8489663 in words is "eight million, four hundred eighty-nine thousand, six hundred sixty-three".