99873365 has 4 divisors (see below), whose sum is σ = 119848044. Its totient is φ = 79898688.

The previous prime is 99873343. The next prime is 99873379. The reversal of 99873365 is 56337899.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 50438404 + 49434961 = 7102^2 + 7031^2 .

It is a cyclic number.

It is not a de Polignac number, because 99873365 - 2¹² = 99869269 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9987332 + ... + 9987341.

It is an arithmetic number, because the mean of its divisors is an integer number (29962011).

Almost surely, 2^99873365 is an apocalyptic number.

It is an amenable number.

99873365 is a deficient number, since it is larger than the sum of its proper divisors (19974679).

99873365 is a wasteful number, since it uses less digits than its factorization.

99873365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19974678.

The product of its digits is 1224720, while the sum is 50.

The square root of 99873365 is about 9993.6662441769. Note that the first 3 decimals coincide. The cubic root of 99873365 is about 463.9628713974.

The spelling of 99873365 in words is "ninety-nine million, eight hundred seventy-three thousand, three hundred sixty-five".