829324805 has 16 divisors (see below), whose sum is σ = 1006662384. Its totient is φ = 655856640.

The previous prime is 829324781. The next prime is 829324813. The reversal of 829324805 is 508423928.

It is a Cunningham number, because it is equal to 28798²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 1 + 829324804 = 1^2 + 28798^2 .

It is a de Polignac number, because none of the positive numbers 2^k-829324805 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 15 ways as a sum of consecutive naturals, for example, 153917 + ... + 159213.

It is an arithmetic number, because the mean of its divisors is an integer number (62916399).

Almost surely, 2^829324805 is an apocalyptic number.

It is an amenable number.

829324805 is a deficient number, since it is larger than the sum of its proper divisors (177337579).

829324805 is a wasteful number, since it uses less digits than its factorization.

829324805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5656.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 829324805 is about 28798.0000173623. Note that the first 4 decimals coincide. The cubic root of 829324805 is about 939.5247352253.

The spelling of 829324805 in words is "eight hundred twenty-nine million, three hundred twenty-four thousand, eight hundred five".