18869875 has 8 divisors (see below), whose sum is σ = 23549760. Its totient is φ = 15095800.

The previous prime is 18869863. The next prime is 18869891. The reversal of 18869875 is 57896881.

It is not a de Polignac number, because 18869875 - 2⁹ = 18869363 is a prime.

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, 75355 + ... + 75604.

It is an arithmetic number, because the mean of its divisors is an integer number (2943720).

Almost surely, 2^18869875 is an apocalyptic number.

18869875 is a deficient number, since it is larger than the sum of its proper divisors (4679885).

18869875 is an equidigital number, since it uses as much as digits as its factorization.

18869875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150974 (or 150964 counting only the distinct ones).

The product of its digits is 967680, while the sum is 52.

The square root of 18869875 is about 4343.9469379816. The cubic root of 18869875 is about 266.2296008823.

The spelling of 18869875 in words is "eighteen million, eight hundred sixty-nine thousand, eight hundred seventy-five".