9669856 has 48 divisors (see below), whose sum is σ = 22226400. Its totient is φ = 4139520.

The previous prime is 9669851. The next prime is 9669859. The reversal of 9669856 is 6589669.

It is a super-2 number, since 2×9669856² = 187012230121472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9669851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10536 + ... + 11416.

It is an arithmetic number, because the mean of its divisors is an integer number (463050).

Almost surely, 2^9669856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9669856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11113200).

9669856 is an abundant number, since it is smaller than the sum of its proper divisors (12556544).

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

9669856 is an equidigital number, since it uses as much as digits as its factorization.

9669856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912 (or 890 counting only the distinct ones).

The product of its digits is 699840, while the sum is 49.

The square root of 9669856 is about 3109.6392073680. The cubic root of 9669856 is about 213.0459759542.

The spelling of 9669856 in words is "nine million, six hundred sixty-nine thousand, eight hundred fifty-six".