999911411 has 2 divisors, whose sum is σ = 999911412. Its totient is φ = 999911410.

The previous prime is 999911399. The next prime is 999911447. The reversal of 999911411 is 114119999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 999911411 - 2¹⁸ = 999649267 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (999911111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499955705 + 499955706.

It is an arithmetic number, because the mean of its divisors is an integer number (499955706).

Almost surely, 2^999911411 is an apocalyptic number.

999911411 is a deficient number, since it is larger than the sum of its proper divisors (1).

999911411 is an equidigital number, since it uses as much as digits as its factorization.

999911411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26244, while the sum is 44.

The square root of 999911411 is about 31621.3758555822. The cubic root of 999911411 is about 999.9704694613.

The spelling of 999911411 in words is "nine hundred ninety-nine million, nine hundred eleven thousand, four hundred eleven".