99320 has 32 divisors (see below), whose sum is σ = 241920. Its totient is φ = 36480.

The previous prime is 99317. The next prime is 99347. The reversal of 99320 is 2399.

It is a nialpdrome in base 10.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425 + ... + 615.

It is an arithmetic number, because the mean of its divisors is an integer number (7560).

2⁹⁹³²⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120960).

99320 is an abundant number, since it is smaller than the sum of its proper divisors (142600).

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

99320 is a wasteful number, since it uses less digits than its factorization.

99320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 99320 is about 315.1507575748. The cubic root of 99320 is about 46.3104396097.

The spelling of 99320 in words is "ninety-nine thousand, three hundred twenty".