82885871 has 2 divisors, whose sum is σ = 82885872. Its totient is φ = 82885870.

The previous prime is 82885867. The next prime is 82885877. The reversal of 82885871 is 17858828.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82885871 - 2² = 82885867 is a prime.

It is a super-2 number, since 2×82885871² = 13740135222857282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82885877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41442935 + 41442936.

It is an arithmetic number, because the mean of its divisors is an integer number (41442936).

Almost surely, 2^82885871 is an apocalyptic number.

82885871 is a deficient number, since it is larger than the sum of its proper divisors (1).

82885871 is an equidigital number, since it uses as much as digits as its factorization.

82885871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 286720, while the sum is 47.

The square root of 82885871 is about 9104.1677818459. The cubic root of 82885871 is about 436.0070401888.

The spelling of 82885871 in words is "eighty-two million, eight hundred eighty-five thousand, eight hundred seventy-one".