829516685 has 8 divisors (see below), whose sum is σ = 996269976. Its totient is φ = 663046720.

The previous prime is 829516679. The next prime is 829516697. The reversal of 829516685 is 586615928.

It can be written as a sum of positive squares in 4 ways, for example, as 79085449 + 750431236 = 8893^2 + 27394^2 .

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

It is not a de Polignac number, because 829516685 - 2¹² = 829512589 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64334 + ... + 76143.

It is an arithmetic number, because the mean of its divisors is an integer number (124533747).

Almost surely, 2^829516685 is an apocalyptic number.

It is an amenable number.

829516685 is a deficient number, since it is larger than the sum of its proper divisors (166753291).

829516685 is a wasteful number, since it uses less digits than its factorization.

829516685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141663.

The product of its digits is 1036800, while the sum is 50.

The square root of 829516685 is about 28801.3313060351. The cubic root of 829516685 is about 939.5971885848.

The spelling of 829516685 in words is "eight hundred twenty-nine million, five hundred sixteen thousand, six hundred eighty-five".