499903 has 2 divisors, whose sum is σ = 499904. Its totient is φ = 499902.

The previous prime is 499897. The next prime is 499927. The reversal of 499903 is 309994.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 499903 - 2⁹ = 499391 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249951 + 249952.

It is an arithmetic number, because the mean of its divisors is an integer number (249952).

2⁴⁹⁹⁹⁰³ is an apocalyptic number.

499903 is a deficient number, since it is larger than the sum of its proper divisors (1).

499903 is an equidigital number, since it uses as much as digits as its factorization.

499903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 499903 is about 707.0381885019. The cubic root of 499903 is about 79.3649196697.

The spelling of 499903 in words is "four hundred ninety-nine thousand, nine hundred three".