998595 has 32 divisors (see below), whose sum is σ = 1915200. Its totient is φ = 490752.

The previous prime is 998561. The next prime is 998617. The reversal of 998595 is 595899.

It is not a de Polignac number, because 998595 - 2⁹ = 998083 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 998595.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1471 + ... + 2039.

It is an arithmetic number, because the mean of its divisors is an integer number (59850).

2⁹⁹⁸⁵⁹⁵ is an apocalyptic number.

998595 is a deficient number, since it is larger than the sum of its proper divisors (916605).

998595 is a wasteful number, since it uses less digits than its factorization.

998595 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596 (or 590 counting only the distinct ones).

The product of its digits is 145800, while the sum is 45.

The square root of 998595 is about 999.2972530734. The cubic root of 998595 is about 99.9531447159.

The spelling of 998595 in words is "nine hundred ninety-eight thousand, five hundred ninety-five".