82857127 has 4 divisors (see below), whose sum is σ = 82914336. Its totient is φ = 82799920.

The previous prime is 82857077. The next prime is 82857149. The reversal of 82857127 is 72175828.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82857127 - 2¹⁹ = 82332839 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82857127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82857197) 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 3 ways as a sum of consecutive naturals, for example, 26374 + ... + 29347.

It is an arithmetic number, because the mean of its divisors is an integer number (20728584).

Almost surely, 2^82857127 is an apocalyptic number.

82857127 is a deficient number, since it is larger than the sum of its proper divisors (57209).

82857127 is a wasteful number, since it uses less digits than its factorization.

82857127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57208.

The product of its digits is 62720, while the sum is 40.

The square root of 82857127 is about 9102.5890273043. The cubic root of 82857127 is about 435.9566333855.

The spelling of 82857127 in words is "eighty-two million, eight hundred fifty-seven thousand, one hundred twenty-seven".