99073 has 4 divisors (see below), whose sum is σ = 106708. Its totient is φ = 91440.

The previous prime is 99053. The next prime is 99079. The reversal of 99073 is 37099.

It is the 129-th star number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37099 = 23 ⋅1613.

It can be written as a sum of positive squares in 2 ways, for example, as 51984 + 47089 = 228^2 + 217^2 .

It is a cyclic number.

It is not a de Polignac number, because 99073 - 2⁵ = 99041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3798 + ... + 3823.

It is an arithmetic number, because the mean of its divisors is an integer number (26677).

2⁹⁹⁰⁷³ is an apocalyptic number.

It is an amenable number.

99073 is a deficient number, since it is larger than the sum of its proper divisors (7635).

99073 is a wasteful number, since it uses less digits than its factorization.

99073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7634.

The product of its (nonzero) digits is 1701, while the sum is 28.

The square root of 99073 is about 314.7586376893. The cubic root of 99073 is about 46.2720177610.

The spelling of 99073 in words is "ninety-nine thousand, seventy-three".