978863936 has 56 divisors (see below), whose sum is σ = 2033625600. Its totient is φ = 466905600.

The previous prime is 978863933. The next prime is 978863947. The reversal of 978863936 is 639368879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978863933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137390 + ... + 144338.

Almost surely, 2^978863936 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 978863936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1016812800).

978863936 is an abundant number, since it is smaller than the sum of its proper divisors (1054761664).

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

978863936 is a wasteful number, since it uses less digits than its factorization.

978863936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7063 (or 7053 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 59.

The square root of 978863936 is about 31286.8013066213. The cubic root of 978863936 is about 992.9044171180.

The spelling of 978863936 in words is "nine hundred seventy-eight million, eight hundred sixty-three thousand, nine hundred thirty-six".