18099323 has 8 divisors (see below), whose sum is σ = 19920816. Its totient is φ = 16307200.

The previous prime is 18099317. The next prime is 18099331. The reversal of 18099323 is 32399081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18099323 - 2¹⁰ = 18098299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18099223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6038 + ... + 8523.

It is an arithmetic number, because the mean of its divisors is an integer number (2490102).

Almost surely, 2^18099323 is an apocalyptic number.

18099323 is a deficient number, since it is larger than the sum of its proper divisors (1821493).

18099323 is a wasteful number, since it uses less digits than its factorization.

18099323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14685.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 18099323 is about 4254.3299119838. The cubic root of 18099323 is about 262.5552923586. Note that the first 3 decimals are identical.

The spelling of 18099323 in words is "eighteen million, ninety-nine thousand, three hundred twenty-three".