978700 has 18 divisors (see below), whose sum is σ = 2123996. Its totient is φ = 391440.

The previous prime is 978697. The next prime is 978713. The reversal of 978700 is 7879.

It is an Ulam 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, 4794 + ... + 4993.

2⁹⁷⁸⁷⁰⁰ is an apocalyptic number.

It is an amenable number.

978700 is an abundant number, since it is smaller than the sum of its proper divisors (1145296).

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

978700 is a wasteful number, since it uses less digits than its factorization.

978700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9801 (or 9794 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 978700 is about 989.2926766129. The cubic root of 978700 is about 99.2848984877.

The spelling of 978700 in words is "nine hundred seventy-eight thousand, seven hundred".