498309 has 16 divisors (see below), whose sum is σ = 773760. Its totient is φ = 279360.

The previous prime is 498301. The next prime is 498331. The reversal of 498309 is 903894.

It is not a de Polignac number, because 498309 - 2³ = 498301 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 498309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (498301) 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, 1087 + ... + 1475.

It is an arithmetic number, because the mean of its divisors is an integer number (48360).

2⁴⁹⁸³⁰⁹ is an apocalyptic number.

It is an amenable number.

498309 is a deficient number, since it is larger than the sum of its proper divisors (275451).

498309 is a wasteful number, since it uses less digits than its factorization.

498309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 498309 is about 705.9100509272. The cubic root of 498309 is about 79.2804750326.

The spelling of 498309 in words is "four hundred ninety-eight thousand, three hundred nine".