18428063 has 2 divisors, whose sum is σ = 18428064. Its totient is φ = 18428062.

The previous prime is 18428057. The next prime is 18428077. The reversal of 18428063 is 36082481.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18428063 - 2¹⁰ = 18427039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18428563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9214031 + 9214032.

It is an arithmetic number, because the mean of its divisors is an integer number (9214032).

Almost surely, 2^18428063 is an apocalyptic number.

18428063 is a deficient number, since it is larger than the sum of its proper divisors (1).

18428063 is an equidigital number, since it uses as much as digits as its factorization.

18428063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 18428063 is about 4292.7919819157. The cubic root of 18428063 is about 264.1353711540.

The spelling of 18428063 in words is "eighteen million, four hundred twenty-eight thousand, sixty-three".