978212922 has 8 divisors (see below), whose sum is σ = 1956425856. Its totient is φ = 326070972.

The previous prime is 978212909. The next prime is 978212941. The reversal of 978212922 is 229212879.

978212922 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

978212922 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 81517738 + ... + 81517749.

It is an arithmetic number, because the mean of its divisors is an integer number (244553232).

Almost surely, 2^978212922 is an apocalyptic number.

978212922 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

978212922 is a wasteful number, since it uses less digits than its factorization.

978212922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163035492.

The product of its digits is 72576, while the sum is 42.

The square root of 978212922 is about 31276.3956043531. The cubic root of 978212922 is about 992.6842509966.

The spelling of 978212922 in words is "nine hundred seventy-eight million, two hundred twelve thousand, nine hundred twenty-two".