99373 has 4 divisors (see below), whose sum is σ = 101728. Its totient is φ = 97020.

The previous prime is 99371. The next prime is 99377. The reversal of 99373 is 37399.

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, and also an emirpimes, since its reverse is a distinct semiprime: 37399 = 149 ⋅251.

It is a cyclic number.

It is not a de Polignac number, because 99373 - 2¹ = 99371 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99371) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1113 + ... + 1198.

It is an arithmetic number, because the mean of its divisors is an integer number (25432).

2⁹⁹³⁷³ is an apocalyptic number.

99373 is the 169-th centered heptagonal number.

It is an amenable number.

99373 is a deficient number, since it is larger than the sum of its proper divisors (2355).

99373 is a wasteful number, since it uses less digits than its factorization.

99373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2354.

The product of its digits is 5103, while the sum is 31.

The square root of 99373 is about 315.2348331007. The cubic root of 99373 is about 46.3186756711.

The spelling of 99373 in words is "ninety-nine thousand, three hundred seventy-three".