8669856 has 48 divisors (see below), whose sum is σ = 24512544. Its totient is φ = 2667264.

The previous prime is 8669831. The next prime is 8669861. The reversal of 8669856 is 6589668.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2226 + ... + 4721.

It is an arithmetic number, because the mean of its divisors is an integer number (510678).

Almost surely, 2^8669856 is an apocalyptic number.

It is an amenable number.

8669856 is an abundant number, since it is smaller than the sum of its proper divisors (15842688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8669856 is a wasteful number, since it uses less digits than its factorization.

8669856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6973 (or 6965 counting only the distinct ones).

The product of its digits is 622080, while the sum is 48.

The square root of 8669856 is about 2944.4619202836. The cubic root of 8669856 is about 205.4331985501.

The spelling of 8669856 in words is "eight million, six hundred sixty-nine thousand, eight hundred fifty-six".