978666528 has 192 divisors, whose sum is σ = 3065610240. Its totient is φ = 267494400.

The previous prime is 978666527. The next prime is 978666641. The reversal of 978666528 is 825666879.

It is not an unprimeable number, because it can be changed into a prime (978666527) by changing a digit.

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 in 31 ways as a sum of consecutive naturals, for example, 2270473 + ... + 2270903.

It is an arithmetic number, because the mean of its divisors is an integer number (15966720).

Almost surely, 2^978666528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 978666528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1532805120).

978666528 is an abundant number, since it is smaller than the sum of its proper divisors (2086943712).

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

978666528 is a wasteful number, since it uses less digits than its factorization.

978666528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591 (or 583 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 57.

The square root of 978666528 is about 31283.6463347865. The cubic root of 978666528 is about 992.8376661136.

The spelling of 978666528 in words is "nine hundred seventy-eight million, six hundred sixty-six thousand, five hundred twenty-eight".