498209549 has 2 divisors, whose sum is σ = 498209550. Its totient is φ = 498209548.

The previous prime is 498209539. The next prime is 498209561. The reversal of 498209549 is 945902894.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 341584324 + 156625225 = 18482^2 + 12515^2 .

It is a cyclic number.

It is not a de Polignac number, because 498209549 - 2⁴ = 498209533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 498209497 and 498209506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (498209539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249104774 + 249104775.

It is an arithmetic number, because the mean of its divisors is an integer number (249104775).

Almost surely, 2^498209549 is an apocalyptic number.

It is an amenable number.

498209549 is a deficient number, since it is larger than the sum of its proper divisors (1).

498209549 is an equidigital number, since it uses as much as digits as its factorization.

498209549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 933120, while the sum is 50.

The square root of 498209549 is about 22320.6081682377. The cubic root of 498209549 is about 792.7520049610.

The spelling of 498209549 in words is "four hundred ninety-eight million, two hundred nine thousand, five hundred forty-nine".