830985 has 8 divisors (see below), whose sum is σ = 1329600. Its totient is φ = 443184.

The previous prime is 830981. The next prime is 830989. The reversal of 830985 is 589038.

It is an interprime number because it is at equal distance from previous prime (830981) and next prime (830989).

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

It is not a de Polignac number, because 830985 - 2² = 830981 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (830981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27685 + ... + 27714.

It is an arithmetic number, because the mean of its divisors is an integer number (166200).

2⁸³⁰⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

830985 is a deficient number, since it is larger than the sum of its proper divisors (498615).

830985 is a wasteful number, since it uses less digits than its factorization.

830985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55407.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 830985 is about 911.5837866044. The cubic root of 830985 is about 94.0151250748.

The spelling of 830985 in words is "eight hundred thirty thousand, nine hundred eighty-five".