498981017 has 2 divisors, whose sum is σ = 498981018. Its totient is φ = 498981016.

The previous prime is 498981013. The next prime is 498981019. The reversal of 498981017 is 710189894.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 470933401 + 28047616 = 21701^2 + 5296^2 .

It is a cyclic number.

It is not a de Polignac number, because 498981017 - 2² = 498981013 is a prime.

Together with 498981019, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (498981013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249490508 + 249490509.

It is an arithmetic number, because the mean of its divisors is an integer number (249490509).

Almost surely, 2^498981017 is an apocalyptic number.

It is an amenable number.

498981017 is a deficient number, since it is larger than the sum of its proper divisors (1).

498981017 is an equidigital number, since it uses as much as digits as its factorization.

498981017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 47.

The square root of 498981017 is about 22337.8830017529. The cubic root of 498981017 is about 793.1609810645.

The spelling of 498981017 in words is "four hundred ninety-eight million, nine hundred eighty-one thousand, seventeen".