82905 has 8 divisors (see below), whose sum is σ = 132672. Its totient is φ = 44208.

The previous prime is 82903. The next prime is 82913. The reversal of 82905 is 50928.

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

It is not a de Polignac number, because 82905 - 2¹ = 82903 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2749 + ... + 2778.

It is an arithmetic number, because the mean of its divisors is an integer number (16584).

2⁸²⁹⁰⁵ is an apocalyptic number.

It is an amenable number.

82905 is a deficient number, since it is larger than the sum of its proper divisors (49767).

82905 is a wasteful number, since it uses less digits than its factorization.

82905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5535.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 82905 is about 287.9322837057. The cubic root of 82905 is about 43.6040579227.

The spelling of 82905 in words is "eighty-two thousand, nine hundred five".