978544 has 20 divisors (see below), whose sum is σ = 2167024. Its totient is φ = 419328.

The previous prime is 978541. The next prime is 978569. The reversal of 978544 is 445879.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4257 + ... + 4480.

2⁹⁷⁸⁵⁴⁴ is an apocalyptic number.

It is an amenable number.

978544 is an abundant number, since it is smaller than the sum of its proper divisors (1188480).

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

978544 is a wasteful number, since it uses less digits than its factorization.

978544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8752 (or 8746 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 978544 is about 989.2138292604. The cubic root of 978544 is about 99.2796230314.

The spelling of 978544 in words is "nine hundred seventy-eight thousand, five hundred forty-four".