18034217 has 2 divisors, whose sum is σ = 18034218. Its totient is φ = 18034216.

The previous prime is 18034193. The next prime is 18034241. The reversal of 18034217 is 71243081.

It is a balanced prime because it is at equal distance from previous prime (18034193) and next prime (18034241).

It can be written as a sum of positive squares in only one way, i.e., 17799961 + 234256 = 4219^2 + 484^2 .

It is a cyclic number.

It is not a de Polignac number, because 18034217 - 2⁶ = 18034153 is a prime.

It is equal to p_1153376 and since 18034217 and 1153376 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (18034267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9017108 + 9017109.

It is an arithmetic number, because the mean of its divisors is an integer number (9017109).

Almost surely, 2^18034217 is an apocalyptic number.

It is an amenable number.

18034217 is a deficient number, since it is larger than the sum of its proper divisors (1).

18034217 is an equidigital number, since it uses as much as digits as its factorization.

18034217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 18034217 is about 4246.6712846652. The cubic root of 18034217 is about 262.2400970996.

Adding to 18034217 its reverse (71243081), we get a palindrome (89277298).

The spelling of 18034217 in words is "eighteen million, thirty-four thousand, two hundred seventeen".