996159843 has 64 divisors (see below), whose sum is σ = 1744619520. Its totient is φ = 549887616.

The previous prime is 996159841. The next prime is 996159883. The reversal of 996159843 is 348951699.

996159843 is a `hidden beast` number, since 9 + 9 + 6 + 1 + 598 + 43 = 666.

It is a Cunningham number, because it is equal to 31562²-1.

It is not a de Polignac number, because 996159843 - 2¹ = 996159841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 996159843.

It is not an unprimeable number, because it can be changed into a prime (996159841) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1167405 + ... + 1168257.

It is an arithmetic number, because the mean of its divisors is an integer number (27259680).

Almost surely, 2^996159843 is an apocalyptic number.

996159843 is a deficient number, since it is larger than the sum of its proper divisors (748459677).

996159843 is a wasteful number, since it uses less digits than its factorization.

996159843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073 (or 1067 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 54.

The square root of 996159843 is about 31561.9999841582. Note that the first 4 decimals coincide. The cubic root of 996159843 is about 998.7183056280.

The spelling of 996159843 in words is "nine hundred ninety-six million, one hundred fifty-nine thousand, eight hundred forty-three".