996443923 has 4 divisors (see below), whose sum is σ = 1048888360. Its totient is φ = 943999488.

The previous prime is 996443909. The next prime is 996443963. The reversal of 996443923 is 329344699.

996443923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-996443923 is a prime.

It is the 31567-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (996443963) by changing a digit.

It is a nontrivial repunit in base 31566.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26222190 + ... + 26222227.

It is an arithmetic number, because the mean of its divisors is an integer number (262222090).

Almost surely, 2^996443923 is an apocalyptic number.

996443923 is a deficient number, since it is larger than the sum of its proper divisors (52444437).

996443923 is a wasteful number, since it uses less digits than its factorization.

996443923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52444436.

The product of its digits is 1259712, while the sum is 49.

The square root of 996443923 is about 31566.5000118797. The cubic root of 996443923 is about 998.8132331416.

The spelling of 996443923 in words is "nine hundred ninety-six million, four hundred forty-three thousand, nine hundred twenty-three".