82863171 has 12 divisors (see below), whose sum is σ = 119770560. Its totient is φ = 55205520.

The previous prime is 82863167. The next prime is 82863203. The reversal of 82863171 is 17136828.

It is not a de Polignac number, because 82863171 - 2² = 82863167 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82863101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22990 + ... + 26348.

It is an arithmetic number, because the mean of its divisors is an integer number (9980880).

Almost surely, 2^82863171 is an apocalyptic number.

82863171 is a deficient number, since it is larger than the sum of its proper divisors (36907389).

82863171 is a wasteful number, since it uses less digits than its factorization.

82863171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6106 (or 6103 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 82863171 is about 9102.9210147073. The cubic root of 82863171 is about 435.9672333903.

Adding to 82863171 its reverse (17136828), we get a palindrome (99999999).

The spelling of 82863171 in words is "eighty-two million, eight hundred sixty-three thousand, one hundred seventy-one".