18685067 has 2 divisors, whose sum is σ = 18685068. Its totient is φ = 18685066.

The previous prime is 18685049. The next prime is 18685081. The reversal of 18685067 is 76058681.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18685067 - 2⁶ = 18685003 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18685087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9342533 + 9342534.

It is an arithmetic number, because the mean of its divisors is an integer number (9342534).

Almost surely, 2^18685067 is an apocalyptic number.

18685067 is a deficient number, since it is larger than the sum of its proper divisors (1).

18685067 is an equidigital number, since it uses as much as digits as its factorization.

18685067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 18685067 is about 4322.6226992417. The cubic root of 18685067 is about 265.3576137824.

The spelling of 18685067 in words is "eighteen million, six hundred eighty-five thousand, sixty-seven".