82305885 has 16 divisors (see below), whose sum is σ = 133922880. Its totient is φ = 43152000.

The previous prime is 82305877. The next prime is 82305917. The reversal of 82305885 is 58850328.

It is not a de Polignac number, because 82305885 - 2³ = 82305877 is a prime.

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 45616 + ... + 47385.

It is an arithmetic number, because the mean of its divisors is an integer number (8370180).

Almost surely, 2^82305885 is an apocalyptic number.

It is an amenable number.

82305885 is a deficient number, since it is larger than the sum of its proper divisors (51616995).

82305885 is a wasteful number, since it uses less digits than its factorization.

82305885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93068.

The product of its (nonzero) digits is 76800, while the sum is 39.

The square root of 82305885 is about 9072.2590902156. The cubic root of 82305885 is about 434.9876862679.

The spelling of 82305885 in words is "eighty-two million, three hundred five thousand, eight hundred eighty-five".