18924023 has 2 divisors, whose sum is σ = 18924024. Its totient is φ = 18924022.

The previous prime is 18924011. The next prime is 18924041. The reversal of 18924023 is 32042981.

It is a weak prime.

It is an emirp because it is prime and its reverse (32042981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18924023 - 2⁸ = 18923767 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18924523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9462011 + 9462012.

It is an arithmetic number, because the mean of its divisors is an integer number (9462012).

Almost surely, 2^18924023 is an apocalyptic number.

18924023 is a deficient number, since it is larger than the sum of its proper divisors (1).

18924023 is an equidigital number, since it uses as much as digits as its factorization.

18924023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 18924023 is about 4350.1750539490. The cubic root of 18924023 is about 266.4840105066.

The spelling of 18924023 in words is "eighteen million, nine hundred twenty-four thousand, twenty-three".