999011 has 4 divisors (see below), whose sum is σ = 1075872. Its totient is φ = 922152.

The previous prime is 999007. The next prime is 999023. The reversal of 999011 is 110999.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 999011 - 2² = 999007 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (999091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38411 + ... + 38436.

It is an arithmetic number, because the mean of its divisors is an integer number (268968).

2⁹⁹⁹⁰¹¹ is an apocalyptic number.

999011 is a deficient number, since it is larger than the sum of its proper divisors (76861).

999011 is a wasteful number, since it uses less digits than its factorization.

999011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76860.

The product of its (nonzero) digits is 729, while the sum is 29.

The square root of 999011 is about 999.5053776744. The cubic root of 999011 is about 99.9670224593.

It can be divided in two parts, 9990 and 11, that added together give a palindrome (10001).

The spelling of 999011 in words is "nine hundred ninety-nine thousand, eleven".