99530 has 16 divisors (see below), whose sum is σ = 184680. Its totient is φ = 38592.

The previous prime is 99529. The next prime is 99551. The reversal of 99530 is 3599.

It can be written as a sum of positive squares in 4 ways, for example, as 76729 + 22801 = 277^2 + 151^2 .

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 99530.

It is an unprimeable 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, 236 + ... + 504.

2⁹⁹⁵³⁰ is an apocalyptic number.

99530 is a deficient number, since it is larger than the sum of its proper divisors (85150).

99530 is a wasteful number, since it uses less digits than its factorization.

99530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313.

The product of its (nonzero) digits is 1215, while the sum is 26.

The square root of 99530 is about 315.4837555247. The cubic root of 99530 is about 46.3430558874.

The spelling of 99530 in words is "ninety-nine thousand, five hundred thirty".