498621 has 4 divisors (see below), whose sum is σ = 664832. Its totient is φ = 332412.

The previous prime is 498613. The next prime is 498643. The reversal of 498621 is 126894.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 498621 - 2³ = 498613 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (498611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83101 + ... + 83106.

It is an arithmetic number, because the mean of its divisors is an integer number (166208).

2⁴⁹⁸⁶²¹ is an apocalyptic number.

It is an amenable number.

498621 is a deficient number, since it is larger than the sum of its proper divisors (166211).

498621 is a wasteful number, since it uses less digits than its factorization.

498621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166210.

The product of its digits is 3456, while the sum is 30.

The square root of 498621 is about 706.1310076749. The cubic root of 498621 is about 79.2970178789.

The spelling of 498621 in words is "four hundred ninety-eight thousand, six hundred twenty-one".