978689080 has 16 divisors (see below), whose sum is σ = 2202050520. Its totient is φ = 391475616.

The previous prime is 978689059. The next prime is 978689087. The reversal of 978689080 is 80986879.

978689080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×978689080² = 1915664630622492800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978689087) 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, 12233574 + ... + 12233653.

Almost surely, 2^978689080 is an apocalyptic number.

It is an amenable number.

978689080 is an abundant number, since it is smaller than the sum of its proper divisors (1223361440).

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

978689080 is a wasteful number, since it uses less digits than its factorization.

978689080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24467238 (or 24467234 counting only the distinct ones).

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

The square root of 978689080 is about 31284.0067766263. The cubic root of 978689080 is about 992.8452922397.

The spelling of 978689080 in words is "nine hundred seventy-eight million, six hundred eighty-nine thousand, eighty".