498688489 has 16 divisors (see below), whose sum is σ = 569398032. Its totient is φ = 432672768.

The previous prime is 498688483. The next prime is 498688499. The reversal of 498688489 is 984886894.

It can be written as a sum of positive squares in 8 ways, for example, as 640000 + 498048489 = 800^2 + 22317^2 .

It is a cyclic number.

It is not a de Polignac number, because 498688489 - 2⁵ = 498688457 is a prime.

It is a super-2 number, since 2×498688489² = 497380418122206242, which contains 22 as substring.

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 498688489.

It is not an unprimeable number, because it can be changed into a prime (498688483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 320337 + ... + 321889.

It is an arithmetic number, because the mean of its divisors is an integer number (35587377).

Almost surely, 2^498688489 is an apocalyptic number.

It is an amenable number.

498688489 is a deficient number, since it is larger than the sum of its proper divisors (70709543).

498688489 is a wasteful number, since it uses less digits than its factorization.

498688489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3036.

The product of its digits is 31850496, while the sum is 64.

The square root of 498688489 is about 22331.3342413748. The cubic root of 498688489 is about 793.0059536898.

The spelling of 498688489 in words is "four hundred ninety-eight million, six hundred eighty-eight thousand, four hundred eighty-nine".