898985 has 8 divisors (see below), whose sum is σ = 1135680. Its totient is φ = 681264.

The previous prime is 898981. The next prime is 898987. The reversal of 898985 is 589898.

It is a happy number.

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

It is not a de Polignac number, because 898985 - 2² = 898981 is a prime.

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 898985.

It is not an unprimeable number, because it can be changed into a prime (898981) 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 7 ways as a sum of consecutive naturals, for example, 4637 + ... + 4826.

It is an arithmetic number, because the mean of its divisors is an integer number (141960).

2⁸⁹⁸⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

898985 is a deficient number, since it is larger than the sum of its proper divisors (236695).

898985 is a wasteful number, since it uses less digits than its factorization.

898985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9487.

The product of its digits is 207360, while the sum is 47.

The square root of 898985 is about 948.1481951678. The cubic root of 898985 is about 96.5126295586.

The spelling of 898985 in words is "eight hundred ninety-eight thousand, nine hundred eighty-five".