99996 has 24 divisors (see below), whose sum is σ = 251664. Its totient is φ = 30720.

The previous prime is 99991. The next prime is 100003. The reversal of 99996 is 69999.

It is a nialpdrome in base 10.

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 99996.

It is not an unprimeable number, because it can be changed into a prime (99991) 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, 165 + ... + 476.

It is an arithmetic number, because the mean of its divisors is an integer number (10486).

2⁹⁹⁹⁹⁶ is an apocalyptic number.

It is an amenable number.

99996 is an abundant number, since it is smaller than the sum of its proper divisors (151668).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125832).

99996 is a wasteful number, since it uses less digits than its factorization.

99996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661 (or 659 counting only the distinct ones).

The product of its digits is 39366, while the sum is 42.

The square root of 99996 is about 316.2214413983. The cubic root of 99996 is about 46.4152694494.

The spelling of 99996 in words is "ninety-nine thousand, nine hundred ninety-six".