996943 has 4 divisors (see below), whose sum is σ = 1000080. Its totient is φ = 993808.

The previous prime is 996899. The next prime is 996953. The reversal of 996943 is 349699.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 349699 = 7 ⋅49957.

It is a cyclic number.

It is not a de Polignac number, because 996943 - 2⁹ = 996431 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 996896 and 996905.

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 996943.

It is not an unprimeable number, because it can be changed into a prime (996953) 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, 1030 + ... + 1747.

It is an arithmetic number, because the mean of its divisors is an integer number (250020).

2⁹⁹⁶⁹⁴³ is an apocalyptic number.

996943 is a deficient number, since it is larger than the sum of its proper divisors (3137).

996943 is a wasteful number, since it uses less digits than its factorization.

996943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3136.

The product of its digits is 52488, while the sum is 40.

The square root of 996943 is about 998.4703300549. The cubic root of 996943 is about 99.8979959872.

The spelling of 996943 in words is "nine hundred ninety-six thousand, nine hundred forty-three".