84985 has 8 divisors (see below), whose sum is σ = 106560. Its totient is φ = 64944.

The previous prime is 84979. The next prime is 84991. The reversal of 84985 is 58948.

It is an interprime number because it is at equal distance from previous prime (84979) and next prime (84991).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84985 - 2³ = 84977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84985.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 255 + ... + 484.

It is an arithmetic number, because the mean of its divisors is an integer number (13320).

2⁸⁴⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

84985 is a deficient number, since it is larger than the sum of its proper divisors (21575).

84985 is a wasteful number, since it uses less digits than its factorization.

84985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767.

The product of its digits is 11520, while the sum is 34.

The square root of 84985 is about 291.5218688195. The cubic root of 84985 is about 43.9657101990.

The spelling of 84985 in words is "eighty-four thousand, nine hundred eighty-five".