978606 has 12 divisors (see below), whose sum is σ = 2120352. Its totient is φ = 326196.

The previous prime is 978599. The next prime is 978611. The reversal of 978606 is 606879.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27166 + ... + 27201.

It is an arithmetic number, because the mean of its divisors is an integer number (176696).

2⁹⁷⁸⁶⁰⁶ is an apocalyptic number.

978606 is an abundant number, since it is smaller than the sum of its proper divisors (1141746).

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

978606 is a wasteful number, since it uses less digits than its factorization.

978606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54375 (or 54372 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 978606 is about 989.2451667812. The cubic root of 978606 is about 99.2817197542.

The spelling of 978606 in words is "nine hundred seventy-eight thousand, six hundred six".