99365173 has 4 divisors (see below), whose sum is σ = 100623040. Its totient is φ = 98107308.

The previous prime is 99365111. The next prime is 99365177. The reversal of 99365173 is 37156399.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-99365173 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 (99365177) 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, 628815 + ... + 628972.

It is an arithmetic number, because the mean of its divisors is an integer number (25155760).

Almost surely, 2^99365173 is an apocalyptic number.

It is an amenable number.

99365173 is a deficient number, since it is larger than the sum of its proper divisors (1257867).

99365173 is a wasteful number, since it uses less digits than its factorization.

99365173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257866.

The product of its digits is 153090, while the sum is 43.

The square root of 99365173 is about 9968.2081137986. The cubic root of 99365173 is about 463.1745956006.

It can be divided in two parts, 993 and 65173, that added together give a palindrome (66166).

The spelling of 99365173 in words is "ninety-nine million, three hundred sixty-five thousand, one hundred seventy-three".