498999 has 8 divisors (see below), whose sum is σ = 679680. Its totient is φ = 325496.

The previous prime is 498989. The next prime is 499021. The reversal of 498999 is 999894.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 498999 - 2¹² = 494903 is a prime.

498999 is a modest number, since divided by 999 gives 498 as remainder.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 498999.

It is not an unprimeable number, because it can be changed into a prime (498989) 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, 1629 + ... + 1910.

It is an arithmetic number, because the mean of its divisors is an integer number (84960).

2⁴⁹⁸⁹⁹⁹ is an apocalyptic number.

498999 is a deficient number, since it is larger than the sum of its proper divisors (180681).

498999 is a wasteful number, since it uses less digits than its factorization.

498999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3589.

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

The square root of 498999 is about 706.3986126827. The cubic root of 498999 is about 79.3170509311.

The spelling of 498999 in words is "four hundred ninety-eight thousand, nine hundred ninety-nine".