84589871 has 2 divisors, whose sum is σ = 84589872. Its totient is φ = 84589870.

The previous prime is 84589867. The next prime is 84589891. The reversal of 84589871 is 17898548.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84589871 - 2² = 84589867 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84589811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42294935 + 42294936.

It is an arithmetic number, because the mean of its divisors is an integer number (42294936).

Almost surely, 2^84589871 is an apocalyptic number.

84589871 is a deficient number, since it is larger than the sum of its proper divisors (1).

84589871 is an equidigital number, since it uses as much as digits as its factorization.

84589871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 645120, while the sum is 50.

The square root of 84589871 is about 9197.2751943171. The cubic root of 84589871 is about 438.9746631219.

The spelling of 84589871 in words is "eighty-four million, five hundred eighty-nine thousand, eight hundred seventy-one".