18675907 has 2 divisors, whose sum is σ = 18675908. Its totient is φ = 18675906.

The previous prime is 18675883. The next prime is 18675929. The reversal of 18675907 is 70957681.

It is a strong prime.

It is an emirp because it is prime and its reverse (70957681) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18675907 - 2¹¹ = 18673859 is a prime.

It is not a weakly prime, because it can be changed into another prime (18670907) 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 as a sum of consecutive naturals, namely, 9337953 + 9337954.

It is an arithmetic number, because the mean of its divisors is an integer number (9337954).

Almost surely, 2^18675907 is an apocalyptic number.

18675907 is a deficient number, since it is larger than the sum of its proper divisors (1).

18675907 is an equidigital number, since it uses as much as digits as its factorization.

18675907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 43.

The square root of 18675907 is about 4321.5630274242. The cubic root of 18675907 is about 265.3142445142.

The spelling of 18675907 in words is "eighteen million, six hundred seventy-five thousand, nine hundred seven".