8085934821 has 4 divisors (see below), whose sum is σ = 10781246432. Its totient is φ = 5390623212.

The previous prime is 8085934781. The next prime is 8085934847. The reversal of 8085934821 is 1284395808.

8085934821 is digitally balanced in base 3, 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8085934821 - 2¹⁵ = 8085902053 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8085934891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1347655801 + ... + 1347655806.

It is an arithmetic number, because the mean of its divisors is an integer number (2695311608).

Almost surely, 2^8085934821 is an apocalyptic number.

It is an amenable number.

8085934821 is a deficient number, since it is larger than the sum of its proper divisors (2695311611).

8085934821 is a wasteful number, since it uses less digits than its factorization.

8085934821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2695311610.

The product of its (nonzero) digits is 552960, while the sum is 48.

The square root of 8085934821 is about 89921.8261658425. The cubic root of 8085934821 is about 2007.1357453736.

The spelling of 8085934821 in words is "eight billion, eighty-five million, nine hundred thirty-four thousand, eight hundred twenty-one".