18097423 has 2 divisors, whose sum is σ = 18097424. Its totient is φ = 18097422.

The previous prime is 18097411. The next prime is 18097439. The reversal of 18097423 is 32479081.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18097423 - 2¹³ = 18089231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18097493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9048711 + 9048712.

It is an arithmetic number, because the mean of its divisors is an integer number (9048712).

Almost surely, 2^18097423 is an apocalyptic number.

18097423 is a deficient number, since it is larger than the sum of its proper divisors (1).

18097423 is an equidigital number, since it uses as much as digits as its factorization.

18097423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 18097423 is about 4254.1066042120. The cubic root of 18097423 is about 262.5461046758.

The spelling of 18097423 in words is "eighteen million, ninety-seven thousand, four hundred twenty-three".