82857165 has 8 divisors (see below), whose sum is σ = 132571488. Its totient is φ = 44190480.

The previous prime is 82857161. The next prime is 82857191. The reversal of 82857165 is 56175828.

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

It is not a de Polignac number, because 82857165 - 2² = 82857161 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82857161) 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, 2761891 + ... + 2761920.

It is an arithmetic number, because the mean of its divisors is an integer number (16571436).

Almost surely, 2^82857165 is an apocalyptic number.

It is an amenable number.

82857165 is a deficient number, since it is larger than the sum of its proper divisors (49714323).

82857165 is a wasteful number, since it uses less digits than its factorization.

82857165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5523819.

The product of its digits is 134400, while the sum is 42.

The square root of 82857165 is about 9102.5911146223. The cubic root of 82857165 is about 435.9567000318.

The spelling of 82857165 in words is "eighty-two million, eight hundred fifty-seven thousand, one hundred sixty-five".