18775067 has 2 divisors, whose sum is σ = 18775068. Its totient is φ = 18775066.

The previous prime is 18775049. The next prime is 18775073. The reversal of 18775067 is 76057781.

It is a strong prime.

It is an emirp because it is prime and its reverse (76057781) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18775067 - 2¹⁰ = 18774043 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18775087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9387533 + 9387534.

It is an arithmetic number, because the mean of its divisors is an integer number (9387534).

Almost surely, 2^18775067 is an apocalyptic number.

18775067 is a deficient number, since it is larger than the sum of its proper divisors (1).

18775067 is an equidigital number, since it uses as much as digits as its factorization.

18775067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82320, while the sum is 41.

The square root of 18775067 is about 4333.0205399929. The cubic root of 18775067 is about 265.7829791866.

The spelling of 18775067 in words is "eighteen million, seven hundred seventy-five thousand, sixty-seven".