82163793 has 8 divisors (see below), whose sum is σ = 110414848. Its totient is φ = 54344304.

The previous prime is 82163779. The next prime is 82163819. The reversal of 82163793 is 39736128.

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

It is not a de Polignac number, because 82163793 - 2⁴ = 82163777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82163723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107446 + ... + 108207.

It is an arithmetic number, because the mean of its divisors is an integer number (13801856).

Almost surely, 2^82163793 is an apocalyptic number.

It is an amenable number.

82163793 is a deficient number, since it is larger than the sum of its proper divisors (28251055).

82163793 is a wasteful number, since it uses less digits than its factorization.

82163793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215783.

The product of its digits is 54432, while the sum is 39.

The square root of 82163793 is about 9064.4245818474. The cubic root of 82163793 is about 434.7372227162.

The spelling of 82163793 in words is "eighty-two million, one hundred sixty-three thousand, seven hundred ninety-three".