18873265 has 8 divisors (see below), whose sum is σ = 23378688. Its totient is φ = 14611440.

The previous prime is 18873227. The next prime is 18873299. The reversal of 18873265 is 56237881.

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

It is not a de Polignac number, because 18873265 - 2⁹ = 18872753 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 60727 + ... + 61036.

It is an arithmetic number, because the mean of its divisors is an integer number (2922336).

Almost surely, 2^18873265 is an apocalyptic number.

It is an amenable number.

18873265 is a deficient number, since it is larger than the sum of its proper divisors (4505423).

18873265 is a wasteful number, since it uses less digits than its factorization.

18873265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121799.

The product of its digits is 80640, while the sum is 40.

The square root of 18873265 is about 4344.3371185947. The cubic root of 18873265 is about 266.2455427704.

The spelling of 18873265 in words is "eighteen million, eight hundred seventy-three thousand, two hundred sixty-five".