18045679 has 2 divisors, whose sum is σ = 18045680. Its totient is φ = 18045678.

The previous prime is 18045667. The next prime is 18045739. The reversal of 18045679 is 97654081.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18045679 - 2⁵ = 18045647 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18045659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9022839 + 9022840.

It is an arithmetic number, because the mean of its divisors is an integer number (9022840).

Almost surely, 2^18045679 is an apocalyptic number.

18045679 is a deficient number, since it is larger than the sum of its proper divisors (1).

18045679 is an equidigital number, since it uses as much as digits as its factorization.

18045679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 18045679 is about 4248.0205978785. The cubic root of 18045679 is about 262.2956426111.

The spelling of 18045679 in words is "eighteen million, forty-five thousand, six hundred seventy-nine".