18068617 has 8 divisors (see below), whose sum is σ = 21208256. Its totient is φ = 15068592.

The previous prime is 18068599. The next prime is 18068621. The reversal of 18068617 is 71686081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-18068617 is a prime.

It is a super-3 number, since 3×18068617³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18068647) 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 in 7 ways as a sum of consecutive naturals, for example, 34623 + ... + 35140.

It is an arithmetic number, because the mean of its divisors is an integer number (2651032).

Almost surely, 2^18068617 is an apocalyptic number.

It is an amenable number.

18068617 is a deficient number, since it is larger than the sum of its proper divisors (3139639).

18068617 is an equidigital number, since it uses as much as digits as its factorization.

18068617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69807.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 18068617 is about 4250.7195861407. The cubic root of 18068617 is about 262.4067308856.

The spelling of 18068617 in words is "eighteen million, sixty-eight thousand, six hundred seventeen".