163996 has 12 divisors (see below), whose sum is σ = 328048. Its totient is φ = 70272.

The previous prime is 163993. The next prime is 163997. The reversal of 163996 is 699361.

163996 is an admirable number.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2901 + ... + 2956.

2¹⁶³⁹⁹⁶ is an apocalyptic number.

It is an amenable number.

163996 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163996 is a wasteful number, since it uses less digits than its factorization.

163996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5868 (or 5866 counting only the distinct ones).

The product of its digits is 8748, while the sum is 34.

The square root of 163996 is about 404.9641959482. The cubic root of 163996 is about 54.7365917278.

It can be divided in two parts, 16 and 3996, that multiplied together give a palindrome (63936).

The spelling of 163996 in words is "one hundred sixty-three thousand, nine hundred ninety-six".