999000943 has 8 divisors (see below), whose sum is σ = 1054566000. Its totient is φ = 943734528.

The previous prime is 999000941. The next prime is 999000949. The reversal of 999000943 is 349000999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 999000943 - 2¹ = 999000941 is a prime.

It is a super-2 number, since 2×999000943² = 1996005768229778498, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 999000943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999000941) 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 in 7 ways as a sum of consecutive naturals, for example, 67768 + ... + 81181.

It is an arithmetic number, because the mean of its divisors is an integer number (131820750).

Almost surely, 2^999000943 is an apocalyptic number.

999000943 is a deficient number, since it is larger than the sum of its proper divisors (55565057).

999000943 is a wasteful number, since it uses less digits than its factorization.

999000943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149321.

The product of its (nonzero) digits is 78732, while the sum is 43.

The square root of 999000943 is about 31606.9761761545. The cubic root of 999000943 is about 999.6668700368. Note that the first 3 decimals are identical.

The spelling of 999000943 in words is "nine hundred ninety-nine million, nine hundred forty-three", and thus it is an aban number.