99930 has 16 divisors (see below), whose sum is σ = 239904. Its totient is φ = 26640.

The previous prime is 99929. The next prime is 99961. The reversal of 99930 is 3999.

99930 is nontrivially palindromic in base 11.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 3331 = 99930 / (9 + 9 + 9 + 3 + 0).

It is a nialpdrome in base 10.

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, 1636 + ... + 1695.

It is an arithmetic number, because the mean of its divisors is an integer number (14994).

2⁹⁹⁹³⁰ is an apocalyptic number.

99930 is an abundant number, since it is smaller than the sum of its proper divisors (139974).

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 (119952).

99930 is a wasteful number, since it uses less digits than its factorization.

99930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3341.

The product of its (nonzero) digits is 2187, while the sum is 30.

The square root of 99930 is about 316.1170669230. The cubic root of 99930 is about 46.4050554341.

The spelling of 99930 in words is "ninety-nine thousand, nine hundred thirty".