8285821305 has 16 divisors (see below), whose sum is σ = 13286851200. Its totient is φ = 4409259008.

The previous prime is 8285821261. The next prime is 8285821319. The reversal of 8285821305 is 5031285828.

It is a cyclic number.

It is not a de Polignac number, because 8285821305 - 2⁷ = 8285821177 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 608397 + ... + 621866.

It is an arithmetic number, because the mean of its divisors is an integer number (830428200).

Almost surely, 2^8285821305 is an apocalyptic number.

It is an amenable number.

8285821305 is a deficient number, since it is larger than the sum of its proper divisors (5001029895).

8285821305 is a wasteful number, since it uses less digits than its factorization.

8285821305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230720.

The product of its (nonzero) digits is 153600, while the sum is 42.

The square root of 8285821305 is about 91026.4868321303. The cubic root of 8285821305 is about 2023.5402825709.

The spelling of 8285821305 in words is "eight billion, two hundred eighty-five million, eight hundred twenty-one thousand, three hundred five".