498421 has 8 divisors (see below), whose sum is σ = 621504. Its totient is φ = 388320.

The previous prime is 498409. The next prime is 498439. The reversal of 498421 is 124894.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-498421 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 498421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (498401) 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, 3160 + ... + 3313.

It is an arithmetic number, because the mean of its divisors is an integer number (77688).

2⁴⁹⁸⁴²¹ is an apocalyptic number.

It is an amenable number.

498421 is a deficient number, since it is larger than the sum of its proper divisors (123083).

498421 is a wasteful number, since it uses less digits than its factorization.

498421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6491.

The product of its digits is 2304, while the sum is 28.

The square root of 498421 is about 705.9893766906. The cubic root of 498421 is about 79.2864142846.

It can be divided in two parts, 4984 and 21, that added together give a palindrome (5005).

The spelling of 498421 in words is "four hundred ninety-eight thousand, four hundred twenty-one".