18423467 has 2 divisors, whose sum is σ = 18423468. Its totient is φ = 18423466.

The previous prime is 18423451. The next prime is 18423481. The reversal of 18423467 is 76432481.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18423467 - 2⁴ = 18423451 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18423967) 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, 9211733 + 9211734.

It is an arithmetic number, because the mean of its divisors is an integer number (9211734).

Almost surely, 2^18423467 is an apocalyptic number.

18423467 is a deficient number, since it is larger than the sum of its proper divisors (1).

18423467 is an equidigital number, since it uses as much as digits as its factorization.

18423467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 35.

The square root of 18423467 is about 4292.2566325885. The cubic root of 18423467 is about 264.1134106780.

The spelling of 18423467 in words is "eighteen million, four hundred twenty-three thousand, four hundred sixty-seven".