829965911 has 4 divisors (see below), whose sum is σ = 850209024. Its totient is φ = 809722800.

The previous prime is 829965901. The next prime is 829965947. The reversal of 829965911 is 119569928.

829965911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-829965911 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 829965911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (829965901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10121495 + ... + 10121576.

It is an arithmetic number, because the mean of its divisors is an integer number (212552256).

Almost surely, 2^829965911 is an apocalyptic number.

829965911 is a deficient number, since it is larger than the sum of its proper divisors (20243113).

829965911 is a wasteful number, since it uses less digits than its factorization.

829965911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20243112.

The product of its digits is 349920, while the sum is 50.

The square root of 829965911 is about 28809.1289524692. The cubic root of 829965911 is about 939.7667713962.

The spelling of 829965911 in words is "eight hundred twenty-nine million, nine hundred sixty-five thousand, nine hundred eleven".