999011711 has 2 divisors, whose sum is σ = 999011712. Its totient is φ = 999011710.

The previous prime is 999011687. The next prime is 999011731. The reversal of 999011711 is 117110999.

It is a strong prime.

It is an emirp because it is prime and its reverse (117110999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 999011711 - 2¹⁸ = 998749567 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999011731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499505855 + 499505856.

It is an arithmetic number, because the mean of its divisors is an integer number (499505856).

Almost surely, 2^999011711 is an apocalyptic number.

999011711 is a deficient number, since it is larger than the sum of its proper divisors (1).

999011711 is an equidigital number, since it uses as much as digits as its factorization.

999011711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5103, while the sum is 38.

The square root of 999011711 is about 31607.1465178368. The cubic root of 999011711 is about 999.6704617498.

The spelling of 999011711 in words is "nine hundred ninety-nine million, eleven thousand, seven hundred eleven".