999500011 has 2 divisors, whose sum is σ = 999500012. Its totient is φ = 999500010.

The previous prime is 999499999. The next prime is 999500039. The reversal of 999500011 is 110005999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 999500011 - 2¹³ = 999491819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 999500011.

It is not a weakly prime, because it can be changed into another prime (999500071) 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, 499750005 + 499750006.

It is an arithmetic number, because the mean of its divisors is an integer number (499750006).

Almost surely, 2^999500011 is an apocalyptic number.

999500011 is a deficient number, since it is larger than the sum of its proper divisors (1).

999500011 is an equidigital number, since it uses as much as digits as its factorization.

999500011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3645, while the sum is 34.

The square root of 999500011 is about 31614.8700930432. The cubic root of 999500011 is about 999.8333092157.

The spelling of 999500011 in words is "nine hundred ninety-nine million, five hundred thousand, eleven".