498521 has 2 divisors, whose sum is σ = 498522. Its totient is φ = 498520.

The previous prime is 498497. The next prime is 498523. The reversal of 498521 is 125894.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 366025 + 132496 = 605^2 + 364^2 .

It is a cyclic number.

It is not a de Polignac number, because 498521 - 2¹⁸ = 236377 is a prime.

It is a Sophie Germain prime.

Together with 498523, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (498523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249260 + 249261.

It is an arithmetic number, because the mean of its divisors is an integer number (249261).

2⁴⁹⁸⁵²¹ is an apocalyptic number.

It is an amenable number.

498521 is a deficient number, since it is larger than the sum of its proper divisors (1).

498521 is an equidigital number, since it uses as much as digits as its factorization.

498521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 29.

The square root of 498521 is about 706.0601957340. The cubic root of 498521 is about 79.2917164362.

The spelling of 498521 in words is "four hundred ninety-eight thousand, five hundred twenty-one".