999343 has 8 divisors (see below), whose sum is σ = 1062000. Its totient is φ = 937728.

The previous prime is 999331. The next prime is 999359. The reversal of 999343 is 343999.

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 999343 - 2⁹ = 998831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2655 + ... + 3007.

It is an arithmetic number, because the mean of its divisors is an integer number (132750).

2⁹⁹⁹³⁴³ is an apocalyptic number.

999343 is a deficient number, since it is larger than the sum of its proper divisors (62657).

999343 is a wasteful number, since it uses less digits than its factorization.

999343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521.

The product of its digits is 26244, while the sum is 37.

The square root of 999343 is about 999.6714460261. The cubic root of 999343 is about 99.9780952021.

The spelling of 999343 in words is "nine hundred ninety-nine thousand, three hundred forty-three".