978989120 has 28 divisors (see below), whose sum is σ = 2331218604. Its totient is φ = 391595520.

The previous prime is 978989119. The next prime is 978989159. The reversal of 978989120 is 21989879.

It can be written as a sum of positive squares in 2 ways, for example, as 359178304 + 619810816 = 18952^2 + 24896^2 .

It is an unprimeable 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 in 3 ways as a sum of consecutive naturals, for example, 1529351 + ... + 1529990.

Almost surely, 2^978989120 is an apocalyptic number.

It is an amenable number.

978989120 is an abundant number, since it is smaller than the sum of its proper divisors (1352229484).

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

978989120 is a wasteful number, since it uses less digits than its factorization.

978989120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3059358 (or 3059348 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 53.

The square root of 978989120 is about 31288.8018306870. The cubic root of 978989120 is about 992.9467418456.

The spelling of 978989120 in words is "nine hundred seventy-eight million, nine hundred eighty-nine thousand, one hundred twenty".