978929012 has 6 divisors (see below), whose sum is σ = 1713125778. Its totient is φ = 489464504.

The previous prime is 978929009. The next prime is 978929033. The reversal of 978929012 is 210929879.

It is a happy number.

978929012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 950242276 + 28686736 = 30826^2 + 5356^2 .

It is a super-2 number, since 2×978929012² = 1916604021070592288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122366123 + ... + 122366130.

It is an arithmetic number, because the mean of its divisors is an integer number (285520963).

Almost surely, 2^978929012 is an apocalyptic number.

It is an amenable number.

978929012 is a deficient number, since it is larger than the sum of its proper divisors (734196766).

978929012 is a wasteful number, since it uses less digits than its factorization.

978929012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244732257 (or 244732255 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 47.

The square root of 978929012 is about 31287.8412805997. The cubic root of 978929012 is about 992.9264197729.

The spelling of 978929012 in words is "nine hundred seventy-eight million, nine hundred twenty-nine thousand, twelve".