18748875 has 48 divisors (see below), whose sum is σ = 33332832. Its totient is φ = 9356800.

The previous prime is 18748871. The next prime is 18748879. The reversal of 18748875 is 57884781.

It is an interprime number because it is at equal distance from previous prime (18748871) and next prime (18748879).

It is not a de Polignac number, because 18748875 - 2² = 18748871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18748871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 108289 + ... + 108461.

It is an arithmetic number, because the mean of its divisors is an integer number (694434).

Almost surely, 2^18748875 is an apocalyptic number.

18748875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18748875 is a deficient number, since it is larger than the sum of its proper divisors (14583957).

18748875 is a wasteful number, since it uses less digits than its factorization.

18748875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 198 counting only the distinct ones).

The product of its digits is 501760, while the sum is 48.

The square root of 18748875 is about 4329.9971131630. The cubic root of 18748875 is about 265.6593288965.

The spelling of 18748875 in words is "eighteen million, seven hundred forty-eight thousand, eight hundred seventy-five".