978996 has 24 divisors (see below), whose sum is σ = 2419200. Its totient is φ = 307072.

The previous prime is 978973. The next prime is 978997. The reversal of 978996 is 699879.

It is a happy number.

978996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2196 + ... + 2603.

It is an arithmetic number, because the mean of its divisors is an integer number (100800).

2⁹⁷⁸⁹⁹⁶ is an apocalyptic number.

It is an amenable number.

978996 is an abundant number, since it is smaller than the sum of its proper divisors (1440204).

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

978996 is a wasteful number, since it uses less digits than its factorization.

978996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4823 (or 4821 counting only the distinct ones).

The product of its digits is 244944, while the sum is 48.

The square root of 978996 is about 989.4422671384. The cubic root of 978996 is about 99.2949067870.

The spelling of 978996 in words is "nine hundred seventy-eight thousand, nine hundred ninety-six".