491098 has 16 divisors (see below), whose sum is σ = 775656. Its totient is φ = 232960.

The previous prime is 491083. The next prime is 491129. The reversal of 491098 is 890194.

It can be written as a sum of positive squares in 4 ways, for example, as 196249 + 294849 = 443^2 + 543^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4290 + ... + 4402.

2⁴⁹¹⁰⁹⁸ is an apocalyptic number.

491098 is a deficient number, since it is larger than the sum of its proper divisors (284558).

491098 is a wasteful number, since it uses less digits than its factorization.

491098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209.

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

The square root of 491098 is about 700.7838468458. The cubic root of 491098 is about 78.8961943759.

The spelling of 491098 in words is "four hundred ninety-one thousand, ninety-eight".