885999 has 4 divisors (see below), whose sum is σ = 1181336. Its totient is φ = 590664.

The previous prime is 885991. The next prime is 886007. The reversal of 885999 is 999588.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (885991) and next prime (886007).

It is not a de Polignac number, because 885999 - 2³ = 885991 is a prime.

It is a D-number.

It is a Duffinian number.

885999 is a modest number, since divided by 999 gives 885 as remainder.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 885999.

It is not an unprimeable number, because it can be changed into a prime (885991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147664 + ... + 147669.

It is an arithmetic number, because the mean of its divisors is an integer number (295334).

2⁸⁸⁵⁹⁹⁹ is an apocalyptic number.

885999 is a deficient number, since it is larger than the sum of its proper divisors (295337).

885999 is a wasteful number, since it uses less digits than its factorization.

885999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295336.

The product of its digits is 233280, while the sum is 48.

The square root of 885999 is about 941.2751988659. The cubic root of 885999 is about 96.0456597034.

The spelling of 885999 in words is "eight hundred eighty-five thousand, nine hundred ninety-nine".