498643 has 2 divisors, whose sum is σ = 498644.
Its totient is φ = 498642.
The previous prime is 498613. The next prime is 498647. The reversal of 498643 is 346894.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 498643 - 25 = 498611 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 498599 and 498608.
It is not a weakly prime, because it can be changed into another prime (498647) 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, 249321 + 249322.
It is an arithmetic number, because the mean of its divisors is an integer number (249322).
2498643 is an apocalyptic number.
498643 is a deficient number, since it is larger than the sum of its proper divisors (1).
498643 is an equidigital number, since it uses as much as digits as its factorization.
498643 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 20736, while the sum is 34.
The square root of 498643 is about 706.1465853490.
The cubic root of 498643 is about 79.2981841012.
The spelling of 498643 in words is "four hundred ninety-eight thousand, six hundred forty-three".