829742808 has 32 divisors (see below), whose sum is σ = 2078645760. Its totient is φ = 276009120.

The previous prime is 829742791. The next prime is 829742813. The reversal of 829742808 is 808247928.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23808 + ... + 47183.

It is an arithmetic number, because the mean of its divisors is an integer number (64957680).

Almost surely, 2^829742808 is an apocalyptic number.

It is an amenable number.

829742808 is an abundant number, since it is smaller than the sum of its proper divisors (1248902952).

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

829742808 is a wasteful number, since it uses less digits than its factorization.

829742808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71487 (or 71483 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 48.

The square root of 829742808 is about 28805.2566036132. The cubic root of 829742808 is about 939.6825576662.

The spelling of 829742808 in words is "eight hundred twenty-nine million, seven hundred forty-two thousand, eight hundred eight".