99573 has 4 divisors (see below), whose sum is σ = 132768. Its totient is φ = 66380.

The previous prime is 99571. The next prime is 99577. The reversal of 99573 is 37599.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99573 - 2¹ = 99571 is a prime.

It is a D-number.

99573 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16593 + ... + 16598.

It is an arithmetic number, because the mean of its divisors is an integer number (33192).

2⁹⁹⁵⁷³ is an apocalyptic number.

It is an amenable number.

99573 is a deficient number, since it is larger than the sum of its proper divisors (33195).

99573 is a wasteful number, since it uses less digits than its factorization.

99573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33194.

The product of its digits is 8505, while the sum is 33.

The square root of 99573 is about 315.5518974749. The cubic root of 99573 is about 46.3497287984.

The spelling of 99573 in words is "ninety-nine thousand, five hundred seventy-three".