9780885 has 32 divisors (see below), whose sum is σ = 17729280. Its totient is φ = 5114304.

The previous prime is 9780871. The next prime is 9780887. The reversal of 9780885 is 5880879.

It is not a de Polignac number, because 9780885 - 2⁶ = 9780821 is a prime.

It is a super-2 number, since 2×9780885² = 191331422766450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9780885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9780887) 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 31 ways as a sum of consecutive naturals, for example, 6472 + ... + 7838.

It is an arithmetic number, because the mean of its divisors is an integer number (554040).

Almost surely, 2^9780885 is an apocalyptic number.

It is an amenable number.

9780885 is a deficient number, since it is larger than the sum of its proper divisors (7948395).

9780885 is a wasteful number, since it uses less digits than its factorization.

9780885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434 (or 1428 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The square root of 9780885 is about 3127.4406469188. The cubic root of 9780885 is about 213.8582707870.

The spelling of 9780885 in words is "nine million, seven hundred eighty thousand, eight hundred eighty-five".