1000498 has 4 divisors (see below), whose sum is σ = 1500750. Its totient is φ = 500248.

The previous prime is 1000457. The next prime is 1000507. The reversal of 1000498 is 8940001.

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

It can be written as a sum of positive squares in only one way, i.e., 528529 + 471969 = 727^2 + 687^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250123 + ... + 250126.

2^1000498 is an apocalyptic number.

1000498 is a deficient number, since it is larger than the sum of its proper divisors (500252).

1000498 is an equidigital number, since it uses as much as digits as its factorization.

1000498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500251.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 1000498 is about 1000.2489690072. The cubic root of 1000498 is about 100.0165972452.

Adding to 1000498 its reverse (8940001), we get a palindrome (9940499).

The spelling of 1000498 in words is "one million, four hundred ninety-eight", and thus it is an aban number.