978323912 has 8 divisors (see below), whose sum is σ = 1834357350. Its totient is φ = 489161952.

The previous prime is 978323893. The next prime is 978323921. The reversal of 978323912 is 219323879.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 902041156 + 76282756 = 30034^2 + 8734^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61145237 + ... + 61145252.

Almost surely, 2^978323912 is an apocalyptic number.

It is an amenable number.

978323912 is a deficient number, since it is larger than the sum of its proper divisors (856033438).

978323912 is a wasteful number, since it uses less digits than its factorization.

978323912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122290495 (or 122290491 counting only the distinct ones).

The product of its digits is 163296, while the sum is 44.

The square root of 978323912 is about 31278.1698953120. The cubic root of 978323912 is about 992.7217935588.

The spelling of 978323912 in words is "nine hundred seventy-eight million, three hundred twenty-three thousand, nine hundred twelve".