978608 has 20 divisors (see below), whose sum is σ = 1958208. Its totient is φ = 473280.

The previous prime is 978599. The next prime is 978611. The reversal of 978608 is 806879.

978608 is an admirable number.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 491 + ... + 1482.

2⁹⁷⁸⁶⁰⁸ is an apocalyptic number.

It is an amenable number.

978608 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

978608 is a wasteful number, since it uses less digits than its factorization.

978608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012 (or 2006 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 978608 is about 989.2461776525. The cubic root of 978608 is about 99.2817873890.

The spelling of 978608 in words is "nine hundred seventy-eight thousand, six hundred eight".