498109 has 4 divisors (see below), whose sum is σ = 510300. Its totient is φ = 485920.

The previous prime is 498103. The next prime is 498119. The reversal of 498109 is 901894.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 272484 + 225625 = 522^2 + 475^2 .

It is a cyclic number.

It is not a de Polignac number, because 498109 - 2³ = 498101 is a prime.

It is a super-2 number, since 2×498109² = 496225151762, which contains 22 as substring.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

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 (498101) 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 3 ways as a sum of consecutive naturals, for example, 6034 + ... + 6115.

It is an arithmetic number, because the mean of its divisors is an integer number (127575).

2⁴⁹⁸¹⁰⁹ is an apocalyptic number.

It is an amenable number.

498109 is a deficient number, since it is larger than the sum of its proper divisors (12191).

498109 is a wasteful number, since it uses less digits than its factorization.

498109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12190.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 498109 is about 705.7683756021. The cubic root of 498109 is about 79.2698670118.

The spelling of 498109 in words is "four hundred ninety-eight thousand, one hundred nine".