978938944 has 21 divisors (see below), whose sum is σ = 1943078791. Its totient is φ = 489344320.

The previous prime is 978938941. The next prime is 978938951. The reversal of 978938944 is 449839879.

The square root of 978938944 is 31288.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (978938941) 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 2 ways as a sum of consecutive naturals, for example, 248349 + ... + 252259.

Almost surely, 2^978938944 is an apocalyptic number.

978938944 is the 31288-th square number.

It is an amenable number.

978938944 is a deficient number, since it is larger than the sum of its proper divisors (964139847).

978938944 is an frugal number, since it uses more digits than its factorization.

978938944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7834 (or 3913 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 61.

The cubic root of 978938944 is about 992.9297777664.

The spelling of 978938944 in words is "nine hundred seventy-eight million, nine hundred thirty-eight thousand, nine hundred forty-four".