8959663 has 8 divisors (see below), whose sum is σ = 9558432. Its totient is φ = 8368896.

The previous prime is 8959603. The next prime is 8959667. The reversal of 8959663 is 3669598.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-8959663 is a prime.

It is a super-2 number, since 2×8959663² = 160551122147138, which contains 22 as substring.

It is a Duffinian number.

8959663 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8959667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406 + ... + 4252.

It is an arithmetic number, because the mean of its divisors is an integer number (1194804).

Almost surely, 2^8959663 is an apocalyptic number.

8959663 is a deficient number, since it is larger than the sum of its proper divisors (598769).

8959663 is a wasteful number, since it uses less digits than its factorization.

8959663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4001.

The product of its digits is 349920, while the sum is 46.

The square root of 8959663 is about 2993.2696169908. The cubic root of 8959663 is about 207.6971600674.

The spelling of 8959663 in words is "eight million, nine hundred fifty-nine thousand, six hundred sixty-three".