499998 has 16 divisors (see below), whose sum is σ = 1008000. Its totient is φ = 165336.

The previous prime is 499979. The next prime is 500009. The reversal of 499998 is 899994.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 753 + ... + 1251.

It is an arithmetic number, because the mean of its divisors is an integer number (63000).

2⁴⁹⁹⁹⁹⁸ is an apocalyptic number.

499998 is an abundant number, since it is smaller than the sum of its proper divisors (508002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

499998 is a wasteful number, since it uses less digits than its factorization.

499998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671.

The product of its digits is 209952, while the sum is 48.

The square root of 499998 is about 707.1053669716. The cubic root of 499998 is about 79.3699467715.

The spelling of 499998 in words is "four hundred ninety-nine thousand, nine hundred ninety-eight".