498391 has 2 divisors, whose sum is σ = 498392. Its totient is φ = 498390.

The previous prime is 498367. The next prime is 498397. The reversal of 498391 is 193894.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 498391 - 2¹¹ = 496343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (498397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249195 + 249196.

It is an arithmetic number, because the mean of its divisors is an integer number (249196).

2⁴⁹⁸³⁹¹ is an apocalyptic number.

498391 is a deficient number, since it is larger than the sum of its proper divisors (1).

498391 is an equidigital number, since it uses as much as digits as its factorization.

498391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 34.

The square root of 498391 is about 705.9681295923. The cubic root of 498391 is about 79.2848235008.

The spelling of 498391 in words is "four hundred ninety-eight thousand, three hundred ninety-one".