18808873 has 8 divisors (see below), whose sum is σ = 19514880. Its totient is φ = 18114720.

The previous prime is 18808859. The next prime is 18808877. The reversal of 18808873 is 37880881.

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 18808873 - 2¹³ = 18800681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18808877) 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, 336 + ... + 6142.

It is an arithmetic number, because the mean of its divisors is an integer number (2439360).

Almost surely, 2^18808873 is an apocalyptic number.

It is an amenable number.

18808873 is a deficient number, since it is larger than the sum of its proper divisors (706007).

18808873 is an equidigital number, since it uses as much as digits as its factorization.

18808873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5927.

The product of its (nonzero) digits is 86016, while the sum is 43.

The square root of 18808873 is about 4336.9197594606. The cubic root of 18808873 is about 265.9424046632.

The spelling of 18808873 in words is "eighteen million, eight hundred eight thousand, eight hundred seventy-three".