978606880 has 24 divisors (see below), whose sum is σ = 2311959132. Its totient is φ = 391442688.

The previous prime is 978606869. The next prime is 978606883. The reversal of 978606880 is 88606879.

It can be written as a sum of positive squares in 2 ways, for example, as 935625744 + 42981136 = 30588^2 + 6556^2 .

It is not an unprimeable number, because it can be changed into a prime (978606883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3057987 + ... + 3058306.

Almost surely, 2^978606880 is an apocalyptic number.

It is an amenable number.

978606880 is an abundant number, since it is smaller than the sum of its proper divisors (1333352252).

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

978606880 is a wasteful number, since it uses less digits than its factorization.

978606880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6116308 (or 6116300 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 52.

The square root of 978606880 is about 31282.6929787063. The cubic root of 978606880 is about 992.8174951351.

The spelling of 978606880 in words is "nine hundred seventy-eight million, six hundred six thousand, eight hundred eighty".