498021 has 8 divisors (see below), whose sum is σ = 670560. Its totient is φ = 328752.

The previous prime is 498013. The next prime is 498053. The reversal of 498021 is 120894.

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

It is not a de Polignac number, because 498021 - 2³ = 498013 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

498021 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 497982 and 498000.

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 498021.

It is not an unprimeable number, because it can be changed into a prime (498061) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 435 + ... + 1088.

It is an arithmetic number, because the mean of its divisors is an integer number (83820).

2⁴⁹⁸⁰²¹ is an apocalyptic number.

It is an amenable number.

498021 is a deficient number, since it is larger than the sum of its proper divisors (172539).

498021 is a wasteful number, since it uses less digits than its factorization.

498021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 498021 is about 705.7060294485. The cubic root of 498021 is about 79.2651985830.

The spelling of 498021 in words is "four hundred ninety-eight thousand, twenty-one".