999069 has 4 divisors (see below), whose sum is σ = 1332096. Its totient is φ = 666044.

The previous prime is 999067. The next prime is 999083. The reversal of 999069 is 960999.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 999069 - 2¹ = 999067 is a prime.

It is a super-2 number, since 2×999069² = 1996277733522, which contains 22 as substring.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 999069.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 999069.

It is not an unprimeable number, because it can be changed into a prime (999067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166509 + ... + 166514.

It is an arithmetic number, because the mean of its divisors is an integer number (333024).

2⁹⁹⁹⁰⁶⁹ is an apocalyptic number.

It is an amenable number.

999069 is a deficient number, since it is larger than the sum of its proper divisors (333027).

999069 is a wasteful number, since it uses less digits than its factorization.

999069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333026.

The product of its (nonzero) digits is 39366, while the sum is 42.

The square root of 999069 is about 999.5343916044. The cubic root of 999069 is about 99.9689570310.

The spelling of 999069 in words is "nine hundred ninety-nine thousand, sixty-nine".