498684217 has 2 divisors, whose sum is σ = 498684218. Its totient is φ = 498684216.

The previous prime is 498684157. The next prime is 498684227. The reversal of 498684217 is 712486894.

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., 341658256 + 157025961 = 18484^2 + 12531^2 .

It is a cyclic number.

It is not a de Polignac number, because 498684217 - 2¹⁹ = 498159929 is a prime.

It is not a weakly prime, because it can be changed into another prime (498684227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249342108 + 249342109.

It is an arithmetic number, because the mean of its divisors is an integer number (249342109).

Almost surely, 2^498684217 is an apocalyptic number.

It is an amenable number.

498684217 is a deficient number, since it is larger than the sum of its proper divisors (1).

498684217 is an equidigital number, since it uses as much as digits as its factorization.

498684217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 774144, while the sum is 49.

The square root of 498684217 is about 22331.2385908171. The cubic root of 498684217 is about 793.0036892628.

The spelling of 498684217 in words is "four hundred ninety-eight million, six hundred eighty-four thousand, two hundred seventeen".