82163305 has 8 divisors (see below), whose sum is σ = 112681152. Its totient is φ = 56340528.

The previous prime is 82163269. The next prime is 82163309. The reversal of 82163305 is 50336128.

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

It is a cyclic number.

It is not a de Polignac number, because 82163305 - 2¹³ = 82155113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82163309) 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, 1173727 + ... + 1173796.

It is an arithmetic number, because the mean of its divisors is an integer number (14085144).

Almost surely, 2^82163305 is an apocalyptic number.

It is an amenable number.

82163305 is a deficient number, since it is larger than the sum of its proper divisors (30517847).

82163305 is a wasteful number, since it uses less digits than its factorization.

82163305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2347535.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 82163305 is about 9064.3976633861. The cubic root of 82163305 is about 434.7363620281.

The spelling of 82163305 in words is "eighty-two million, one hundred sixty-three thousand, three hundred five".