398585 has 8 divisors (see below), whose sum is σ = 521856. Its totient is φ = 289840.

The previous prime is 398581. The next prime is 398591. The reversal of 398585 is 585893.

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

It is not a de Polignac number, because 398585 - 2² = 398581 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 398585.

It is not an unprimeable number, because it can be changed into a prime (398581) 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, 3569 + ... + 3678.

It is an arithmetic number, because the mean of its divisors is an integer number (65232).

2³⁹⁸⁵⁸⁵ is an apocalyptic number.

It is an amenable number.

398585 is a deficient number, since it is larger than the sum of its proper divisors (123271).

398585 is a wasteful number, since it uses less digits than its factorization.

398585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7263.

The product of its digits is 43200, while the sum is 38.

The square root of 398585 is about 631.3358852465. The cubic root of 398585 is about 73.5936455801.

The spelling of 398585 in words is "three hundred ninety-eight thousand, five hundred eighty-five".