18814079 has 2 divisors, whose sum is σ = 18814080. Its totient is φ = 18814078.

The previous prime is 18814063. The next prime is 18814141. The reversal of 18814079 is 97041881.

It is a weak prime.

It is an emirp because it is prime and its reverse (97041881) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18814079 - 2⁴ = 18814063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18814979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9407039 + 9407040.

It is an arithmetic number, because the mean of its divisors is an integer number (9407040).

Almost surely, 2^18814079 is an apocalyptic number.

18814079 is a deficient number, since it is larger than the sum of its proper divisors (1).

18814079 is an equidigital number, since it uses as much as digits as its factorization.

18814079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 18814079 is about 4337.5199134990. The cubic root of 18814079 is about 265.9669386237.

The spelling of 18814079 in words is "eighteen million, eight hundred fourteen thousand, seventy-nine".