498499081 has 2 divisors, whose sum is σ = 498499082. Its totient is φ = 498499080.

The previous prime is 498499063. The next prime is 498499093. The reversal of 498499081 is 180994894.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 470239225 + 28259856 = 21685^2 + 5316^2 .

It is a cyclic number.

It is not a de Polignac number, because 498499081 - 2⁵ = 498499049 is a prime.

It is a super-2 number, since 2×498499081² = 497002667515689122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (498499051) 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 as a sum of consecutive naturals, namely, 249249540 + 249249541.

It is an arithmetic number, because the mean of its divisors is an integer number (249249541).

Almost surely, 2^498499081 is an apocalyptic number.

It is an amenable number.

498499081 is a deficient number, since it is larger than the sum of its proper divisors (1).

498499081 is an equidigital number, since it uses as much as digits as its factorization.

498499081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 52.

The square root of 498499081 is about 22327.0929813982. The cubic root of 498499081 is about 792.9055431830.

The spelling of 498499081 in words is "four hundred ninety-eight million, four hundred ninety-nine thousand, eighty-one".