999770011 has 2 divisors, whose sum is σ = 999770012. Its totient is φ = 999770010.

The previous prime is 999769997. The next prime is 999770021. The reversal of 999770011 is 110077999.

It is a strong prime.

It is an emirp because it is prime and its reverse (110077999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 999770011 - 2¹¹ = 999767963 is a prime.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 999770011.

It is not a weakly prime, because it can be changed into another prime (999770021) 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, 499885005 + 499885006.

It is an arithmetic number, because the mean of its divisors is an integer number (499885006).

Almost surely, 2^999770011 is an apocalyptic number.

999770011 is a deficient number, since it is larger than the sum of its proper divisors (1).

999770011 is an equidigital number, since it uses as much as digits as its factorization.

999770011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35721, while the sum is 43.

The square root of 999770011 is about 31619.1399471902. The cubic root of 999770011 is about 999.9233311220.

It can be divided in two parts, 9997 and 70011, that added together give a palindrome (80008).

The spelling of 999770011 in words is "nine hundred ninety-nine million, seven hundred seventy thousand, eleven".