978708 has 12 divisors (see below), whose sum is σ = 2283680. Its totient is φ = 326232.

The previous prime is 978697. The next prime is 978713. The reversal of 978708 is 807879.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

978708 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40768 + ... + 40791.

2⁹⁷⁸⁷⁰⁸ is an apocalyptic number.

It is an amenable number.

978708 is an abundant number, since it is smaller than the sum of its proper divisors (1304972).

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

978708 is a wasteful number, since it uses less digits than its factorization.

978708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81566 (or 81564 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 39.

The square root of 978708 is about 989.2967198975. The cubic root of 978708 is about 99.2851690088.

The spelling of 978708 in words is "nine hundred seventy-eight thousand, seven hundred eight".