18424067 has 2 divisors, whose sum is σ = 18424068. Its totient is φ = 18424066.

The previous prime is 18424027. The next prime is 18424069. The reversal of 18424067 is 76042481.

It is a strong prime.

It is an emirp because it is prime and its reverse (76042481) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18424067 is a prime.

Together with 18424069, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18424069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9212033 + 9212034.

It is an arithmetic number, because the mean of its divisors is an integer number (9212034).

Almost surely, 2^18424067 is an apocalyptic number.

18424067 is a deficient number, since it is larger than the sum of its proper divisors (1).

18424067 is an equidigital number, since it uses as much as digits as its factorization.

18424067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 18424067 is about 4292.3265253240. The cubic root of 18424067 is about 264.1162777882.

The spelling of 18424067 in words is "eighteen million, four hundred twenty-four thousand, sixty-seven".