985523 has 8 divisors (see below), whose sum is σ = 1228800. Its totient is φ = 767880.

The previous prime is 985519. The next prime is 985529. The reversal of 985523 is 325589.

It is a happy number.

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 985523 - 2² = 985519 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 985523.

It is not an unprimeable number, because it can be changed into a prime (985529) by changing a digit.

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, 6323 + ... + 6476.

It is an arithmetic number, because the mean of its divisors is an integer number (153600).

2⁹⁸⁵⁵²³ is an apocalyptic number.

985523 is a deficient number, since it is larger than the sum of its proper divisors (243277).

985523 is a wasteful number, since it uses less digits than its factorization.

985523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12817.

The product of its digits is 10800, while the sum is 32.

The square root of 985523 is about 992.7351106917. The cubic root of 985523 is about 99.5150857155.

The spelling of 985523 in words is "nine hundred eighty-five thousand, five hundred twenty-three".