978017216 has 28 divisors (see below), whose sum is σ = 2117186520. Its totient is φ = 444552960.

The previous prime is 978017207. The next prime is 978017237. The reversal of 978017216 is 612710879.

978017216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 693911 + ... + 695318.

Almost surely, 2^978017216 is an apocalyptic number.

It is an amenable number.

978017216 is an abundant number, since it is smaller than the sum of its proper divisors (1139169304).

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

978017216 is a wasteful number, since it uses less digits than its factorization.

978017216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389252 (or 1389242 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 41.

The square root of 978017216 is about 31273.2667945004. The cubic root of 978017216 is about 992.6180461800.

The spelling of 978017216 in words is "nine hundred seventy-eight million, seventeen thousand, two hundred sixteen".