82857267 has 6 divisors (see below), whose sum is σ = 119682732. Its totient is φ = 55238172.

The previous prime is 82857253. The next prime is 82857277. The reversal of 82857267 is 76275828.

It is not a de Polignac number, because 82857267 - 2⁴ = 82857251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82857227) 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 5 ways as a sum of consecutive naturals, for example, 4603173 + ... + 4603190.

It is an arithmetic number, because the mean of its divisors is an integer number (19947122).

Almost surely, 2^82857267 is an apocalyptic number.

82857267 is a deficient number, since it is larger than the sum of its proper divisors (36825465).

82857267 is a wasteful number, since it uses less digits than its factorization.

82857267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9206369 (or 9206366 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 82857267 is about 9102.5967174208. The cubic root of 82857267 is about 435.9568789242.

The spelling of 82857267 in words is "eighty-two million, eight hundred fifty-seven thousand, two hundred sixty-seven".