18488023 has 2 divisors, whose sum is σ = 18488024. Its totient is φ = 18488022.

The previous prime is 18488011. The next prime is 18488033. The reversal of 18488023 is 32088481.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18488023 - 2¹³ = 18479831 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18488023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18488033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9244011 + 9244012.

It is an arithmetic number, because the mean of its divisors is an integer number (9244012).

Almost surely, 2^18488023 is an apocalyptic number.

18488023 is a deficient number, since it is larger than the sum of its proper divisors (1).

18488023 is an equidigital number, since it uses as much as digits as its factorization.

18488023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 18488023 is about 4299.7701101338. The cubic root of 18488023 is about 264.4215363499.

The spelling of 18488023 in words is "eighteen million, four hundred eighty-eight thousand, twenty-three".