8857663 has 4 divisors (see below), whose sum is σ = 9378720. Its totient is φ = 8336608.

The previous prime is 8857649. The next prime is 8857669. The reversal of 8857663 is 3667588.

8857663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-8857663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8857669) 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, 260503 + ... + 260536.

It is an arithmetic number, because the mean of its divisors is an integer number (2344680).

Almost surely, 2^8857663 is an apocalyptic number.

8857663 is a deficient number, since it is larger than the sum of its proper divisors (521057).

8857663 is a wasteful number, since it uses less digits than its factorization.

8857663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521056.

The product of its digits is 241920, while the sum is 43.

The square root of 8857663 is about 2976.1826220849. The cubic root of 8857663 is about 206.9059838953.

The spelling of 8857663 in words is "eight million, eight hundred fifty-seven thousand, six hundred sixty-three".