500398 has 4 divisors (see below), whose sum is σ = 750600. Its totient is φ = 250198.

The previous prime is 500393. The next prime is 500413. The reversal of 500398 is 893005.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 893005 = 5 ⋅178601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500393) by changing a digit.

500398 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125098 + ... + 125101.

It is an arithmetic number, because the mean of its divisors is an integer number (187650).

2⁵⁰⁰³⁹⁸ is an apocalyptic number.

500398 is a deficient number, since it is larger than the sum of its proper divisors (250202).

500398 is a wasteful number, since it uses less digits than its factorization.

500398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250201.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 500398 is about 707.3881537035. The cubic root of 500398 is about 79.3911065337.

It can be divided in two parts, 500 and 398, that added together give a palindrome (898).

The spelling of 500398 in words is "five hundred thousand, three hundred ninety-eight".