985105 has 8 divisors (see below), whose sum is σ = 1289664. Its totient is φ = 716400.

The previous prime is 985097. The next prime is 985109. The reversal of 985105 is 501589.

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

It is not a de Polignac number, because 985105 - 2³ = 985097 is a prime.

It is a super-2 number, since 2×985105² = 1940863722050, which contains 22 as substring.

It is a Duffinian number.

985105 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (985109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8901 + ... + 9010.

It is an arithmetic number, because the mean of its divisors is an integer number (161208).

2⁹⁸⁵¹⁰⁵ is an apocalyptic number.

It is an amenable number.

985105 is a deficient number, since it is larger than the sum of its proper divisors (304559).

985105 is a wasteful number, since it uses less digits than its factorization.

985105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17927.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 985105 is about 992.5245588901. The cubic root of 985105 is about 99.5010142738.

The spelling of 985105 in words is "nine hundred eighty-five thousand, one hundred five".