9780089912 has 16 divisors (see below), whose sum is σ = 18343662840. Its totient is φ = 4888446496.

The previous prime is 9780089911. The next prime is 9780089929. The reversal of 9780089912 is 2199800879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9780089911) 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, 173603 + ... + 222930.

Almost surely, 2^9780089912 is an apocalyptic number.

It is an amenable number.

9780089912 is a deficient number, since it is larger than the sum of its proper divisors (8563572928).

9780089912 is a wasteful number, since it uses less digits than its factorization.

9780089912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399622 (or 399618 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 53.

The square root of 9780089912 is about 98894.3371078446. The cubic root of 9780089912 is about 2138.5247578472.

The spelling of 9780089912 in words is "nine billion, seven hundred eighty million, eighty-nine thousand, nine hundred twelve".