18853423 has 2 divisors, whose sum is σ = 18853424. Its totient is φ = 18853422.

The previous prime is 18853421. The next prime is 18853433. The reversal of 18853423 is 32435881.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18853423 - 2¹ = 18853421 is a prime.

Together with 18853421, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18853421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9426711 + 9426712.

It is an arithmetic number, because the mean of its divisors is an integer number (9426712).

Almost surely, 2^18853423 is an apocalyptic number.

18853423 is a deficient number, since it is larger than the sum of its proper divisors (1).

18853423 is an equidigital number, since it uses as much as digits as its factorization.

18853423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 34.

The square root of 18853423 is about 4342.0528555051. The cubic root of 18853423 is about 266.1522062177.

The spelling of 18853423 in words is "eighteen million, eight hundred fifty-three thousand, four hundred twenty-three".