499993709 has 2 divisors, whose sum is σ = 499993710. Its totient is φ = 499993708.

The previous prime is 499993631. The next prime is 499993751. The reversal of 499993709 is 907399994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 338449609 + 161544100 = 18397^2 + 12710^2 .

It is a cyclic number.

It is not a de Polignac number, because 499993709 - 2⁸ = 499993453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499992709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249996854 + 249996855.

It is an arithmetic number, because the mean of its divisors is an integer number (249996855).

Almost surely, 2^499993709 is an apocalyptic number.

It is an amenable number.

499993709 is a deficient number, since it is larger than the sum of its proper divisors (1).

499993709 is an equidigital number, since it uses as much as digits as its factorization.

499993709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4960116, while the sum is 59.

The square root of 499993709 is about 22360.5391035189. The cubic root of 499993709 is about 793.6971971901.

The spelling of 499993709 in words is "four hundred ninety-nine million, nine hundred ninety-three thousand, seven hundred nine".