985975 has 6 divisors (see below), whose sum is σ = 1222640. Its totient is φ = 788760.

The previous prime is 985973. The next prime is 985979. The reversal of 985975 is 579589.

It is not a de Polignac number, because 985975 - 2¹ = 985973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19695 + ... + 19744.

2⁹⁸⁵⁹⁷⁵ is an apocalyptic number.

985975 is a deficient number, since it is larger than the sum of its proper divisors (236665).

985975 is a wasteful number, since it uses less digits than its factorization.

985975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39449 (or 39444 counting only the distinct ones).

The product of its digits is 113400, while the sum is 43.

The square root of 985975 is about 992.9627384751. The cubic root of 985975 is about 99.5302972474.

The spelling of 985975 in words is "nine hundred eighty-five thousand, nine hundred seventy-five".