18357873 has 8 divisors (see below), whose sum is σ = 25074336. Its totient is φ = 11940000.

The previous prime is 18357847. The next prime is 18357877. The reversal of 18357873 is 37875381.

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

It is not a de Polignac number, because 18357873 - 2⁸ = 18357617 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18357877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74503 + ... + 74748.

It is an arithmetic number, because the mean of its divisors is an integer number (3134292).

Almost surely, 2^18357873 is an apocalyptic number.

It is an amenable number.

18357873 is a deficient number, since it is larger than the sum of its proper divisors (6716463).

18357873 is a wasteful number, since it uses less digits than its factorization.

18357873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149295.

The product of its digits is 141120, while the sum is 42.

The square root of 18357873 is about 4284.6088502919. The cubic root of 18357873 is about 263.7995925104.

The spelling of 18357873 in words is "eighteen million, three hundred fifty-seven thousand, eight hundred seventy-three".