498609 has 16 divisors (see below), whose sum is σ = 753600. Its totient is φ = 325728.

The previous prime is 498599. The next prime is 498611. The reversal of 498609 is 906894.

498609 is a `hidden beast` number, since 49 + 8 + 609 = 666.

It is not a de Polignac number, because 498609 - 2⁵ = 498577 is a prime.

It is a super-2 number, since 2×498609² = 497221869762, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (498679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1437 + ... + 1749.

It is an arithmetic number, because the mean of its divisors is an integer number (47100).

2⁴⁹⁸⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

498609 is a deficient number, since it is larger than the sum of its proper divisors (254991).

498609 is a wasteful number, since it uses less digits than its factorization.

498609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 498609 is about 706.1225106170. The cubic root of 498609 is about 79.2963817432.

The spelling of 498609 in words is "four hundred ninety-eight thousand, six hundred nine".