82804385 has 16 divisors (see below), whose sum is σ = 100672320. Its totient is φ = 65378880.

The previous prime is 82804373. The next prime is 82804417. The reversal of 82804385 is 58340828.

It is not a de Polignac number, because 82804385 - 2⁸ = 82804129 is a prime.

It is a Smith number, since the sum of its digits (38) 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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196475 + ... + 196895.

It is an arithmetic number, because the mean of its divisors is an integer number (6292020).

Almost surely, 2^82804385 is an apocalyptic number.

It is an amenable number.

82804385 is a deficient number, since it is larger than the sum of its proper divisors (17867935).

82804385 is a wasteful number, since it uses less digits than its factorization.

82804385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848.

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 82804385 is about 9099.6914782865. The cubic root of 82804385 is about 435.8641122550.

The spelling of 82804385 in words is "eighty-two million, eight hundred four thousand, three hundred eighty-five".