978078912 has 112 divisors (see below), whose sum is σ = 2633472000. Its totient is φ = 320343040.

The previous prime is 978078877. The next prime is 978078917. The reversal of 978078912 is 219870879.

It is a super-3 number, since 3×978078912³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (978078917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5120737 + ... + 5120927.

Almost surely, 2^978078912 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 978078912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1316736000).

978078912 is an abundant number, since it is smaller than the sum of its proper divisors (1655393088).

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

978078912 is a wasteful number, since it uses less digits than its factorization.

978078912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 524 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 51.

The square root of 978078912 is about 31274.2531805317. The cubic root of 978078912 is about 992.6389180945.

The spelling of 978078912 in words is "nine hundred seventy-eight million, seventy-eight thousand, nine hundred twelve".