829668812 has 24 divisors (see below), whose sum is σ = 1660561056. Its totient is φ = 355310208.

The previous prime is 829668793. The next prime is 829668817. The reversal of 829668812 is 218866928.

It is not an unprimeable number, because it can be changed into a prime (829668817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30488 + ... + 50880.

It is an arithmetic number, because the mean of its divisors is an integer number (69190044).

Almost surely, 2^829668812 is an apocalyptic number.

It is an amenable number.

829668812 is an abundant number, since it is smaller than the sum of its proper divisors (830892244).

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

829668812 is a wasteful number, since it uses less digits than its factorization.

829668812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21857 (or 21855 counting only the distinct ones).

The product of its digits is 663552, while the sum is 50.

The square root of 829668812 is about 28803.9721566315. The cubic root of 829668812 is about 939.6546233807.

The spelling of 829668812 in words is "eight hundred twenty-nine million, six hundred sixty-eight thousand, eight hundred twelve".