978688900 has 36 divisors (see below), whose sum is σ = 2427150208. Its totient is φ = 335550240.

The previous prime is 978688891. The next prime is 978688933. The reversal of 978688900 is 9886879.

978688900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 698364 + ... + 699763.

Almost surely, 2^978688900 is an apocalyptic number.

It is an amenable number.

978688900 is an abundant number, since it is smaller than the sum of its proper divisors (1448461308).

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

978688900 is a wasteful number, since it uses less digits than its factorization.

978688900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398148 (or 1398141 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 55.

The square root of 978688900 is about 31284.0038997568. The cubic root of 978688900 is about 992.8452313718.

The spelling of 978688900 in words is "nine hundred seventy-eight million, six hundred eighty-eight thousand, nine hundred".