499989803 has 2 divisors, whose sum is σ = 499989804. Its totient is φ = 499989802.

The previous prime is 499989799. The next prime is 499989827. The reversal of 499989803 is 308989994.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 499989803 - 2² = 499989799 is a prime.

It is not a weakly prime, because it can be changed into another prime (499689803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249994901 + 249994902.

It is an arithmetic number, because the mean of its divisors is an integer number (249994902).

Almost surely, 2^499989803 is an apocalyptic number.

499989803 is a deficient number, since it is larger than the sum of its proper divisors (1).

499989803 is an equidigital number, since it uses as much as digits as its factorization.

499989803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5038848, while the sum is 59.

The square root of 499989803 is about 22360.4517619837. The cubic root of 499989803 is about 793.6951303712.

The spelling of 499989803 in words is "four hundred ninety-nine million, nine hundred eighty-nine thousand, eight hundred three".