99606 has 16 divisors (see below), whose sum is σ = 214704. Its totient is φ = 30624.

The previous prime is 99581. The next prime is 99607. The reversal of 99606 is 60699.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99607) by changing a digit.

99606 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 561 + ... + 716.

It is an arithmetic number, because the mean of its divisors is an integer number (13419).

2⁹⁹⁶⁰⁶ is an apocalyptic number.

99606 is an abundant number, since it is smaller than the sum of its proper divisors (115098).

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 (107352).

99606 is a wasteful number, since it uses less digits than its factorization.

99606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 99606 is about 315.6041824818. The cubic root of 99606 is about 46.3548485669.

The spelling of 99606 in words is "ninety-nine thousand, six hundred six".