499499999 has 2 divisors, whose sum is σ = 499500000. Its totient is φ = 499499998.

The previous prime is 499499983. The next prime is 499500011. The reversal of 499499999 is 999994994.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 499499999 - 2⁴ = 499499983 is a prime.

It is a Sophie Germain prime.

499499999 is a modest number, since divided by 99999 gives 4994 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499499909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249749999 + 249750000.

It is an arithmetic number, because the mean of its divisors is an integer number (249750000).

Almost surely, 2^499499999 is an apocalyptic number.

499499999 is a deficient number, since it is larger than the sum of its proper divisors (1).

499499999 is an equidigital number, since it uses as much as digits as its factorization.

499499999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 76527504, while the sum is 71.

The square root of 499499999 is about 22349.4966162551. The cubic root of 499499999 is about 793.4358703746.

The spelling of 499499999 in words is "four hundred ninety-nine million, four hundred ninety-nine thousand, nine hundred ninety-nine".