8120806829 has 8 divisors (see below), whose sum is σ = 8137468032. Its totient is φ = 8104163760.

The previous prime is 8120806807. The next prime is 8120806843. The reversal of 8120806829 is 9286080218.

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

It is a cyclic number.

It is not a de Polignac number, because 8120806829 - 2¹² = 8120802733 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8120806829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8120806429) by changing a digit.

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, 1192424 + ... + 1199214.

It is an arithmetic number, because the mean of its divisors is an integer number (1017183504).

Almost surely, 2^8120806829 is an apocalyptic number.

It is an amenable number.

8120806829 is a deficient number, since it is larger than the sum of its proper divisors (16661203).

8120806829 is a wasteful number, since it uses less digits than its factorization.

8120806829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9067.

The product of its (nonzero) digits is 110592, while the sum is 44.

The square root of 8120806829 is about 90115.5193571008. The cubic root of 8120806829 is about 2010.0169820269.

The spelling of 8120806829 in words is "eight billion, one hundred twenty million, eight hundred six thousand, eight hundred twenty-nine".