978704 has 10 divisors (see below), whose sum is σ = 1896270. Its totient is φ = 489344.

The previous prime is 978697. The next prime is 978713. The reversal of 978704 is 407879.

It can be written as a sum of positive squares in only one way, i.e., 774400 + 204304 = 880^2 + 452^2 .

It is an unprimeable number.

978704 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30569 + ... + 30600.

It is an arithmetic number, because the mean of its divisors is an integer number (189627).

2⁹⁷⁸⁷⁰⁴ is an apocalyptic number.

It is an amenable number.

978704 is a deficient number, since it is larger than the sum of its proper divisors (917566).

978704 is a wasteful number, since it uses less digits than its factorization.

978704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61177 (or 61171 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 978704 is about 989.2946982573. The cubic root of 978704 is about 99.2850337484.

The spelling of 978704 in words is "nine hundred seventy-eight thousand, seven hundred four".