999339 has 12 divisors (see below), whose sum is σ = 1465128. Its totient is φ = 605440.

The previous prime is 999331. The next prime is 999359. The reversal of 999339 is 933999.

It is not a de Polignac number, because 999339 - 2³ = 999331 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 999339.

It is not an unprimeable number, because it can be changed into a prime (999331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1014 + ... + 1739.

It is an arithmetic number, because the mean of its divisors is an integer number (122094).

2⁹⁹⁹³³⁹ is an apocalyptic number.

999339 is a deficient number, since it is larger than the sum of its proper divisors (465789).

999339 is a wasteful number, since it uses less digits than its factorization.

999339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2778 (or 2767 counting only the distinct ones).

The product of its digits is 59049, while the sum is 42.

The square root of 999339 is about 999.6694453668. The cubic root of 999339 is about 99.9779618102.

The spelling of 999339 in words is "nine hundred ninety-nine thousand, three hundred thirty-nine".