498809123 has 2 divisors, whose sum is σ = 498809124. Its totient is φ = 498809122.

The previous prime is 498809107. The next prime is 498809149. The reversal of 498809123 is 321908894.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 498809123 - 2⁴ = 498809107 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (498809153) 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, 249404561 + 249404562.

It is an arithmetic number, because the mean of its divisors is an integer number (249404562).

Almost surely, 2^498809123 is an apocalyptic number.

498809123 is a deficient number, since it is larger than the sum of its proper divisors (1).

498809123 is an equidigital number, since it uses as much as digits as its factorization.

498809123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 498809123 is about 22334.0350810148. The cubic root of 498809123 is about 793.0698919129.

The spelling of 498809123 in words is "four hundred ninety-eight million, eight hundred nine thousand, one hundred twenty-three".