18668675 has 6 divisors (see below), whose sum is σ = 23149188. Its totient is φ = 14934920.

The previous prime is 18668641. The next prime is 18668687. The reversal of 18668675 is 57686681.

It is not a de Polignac number, because 18668675 - 2¹² = 18664579 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 373349 + ... + 373398.

It is an arithmetic number, because the mean of its divisors is an integer number (3858198).

Almost surely, 2^18668675 is an apocalyptic number.

18668675 is a deficient number, since it is larger than the sum of its proper divisors (4480513).

18668675 is an equidigital number, since it uses as much as digits as its factorization.

18668675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746757 (or 746752 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The square root of 18668675 is about 4320.7262121083. The cubic root of 18668675 is about 265.2799936058.

The spelling of 18668675 in words is "eighteen million, six hundred sixty-eight thousand, six hundred seventy-five".