68618 has 8 divisors (see below), whose sum is σ = 112320. Its totient is φ = 31180.

The previous prime is 68611. The next prime is 68633. The reversal of 68618 is 81686.

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

It is not an unprimeable number, because it can be changed into a prime (68611) by changing a digit.

68618 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1538 + ... + 1581.

It is an arithmetic number, because the mean of its divisors is an integer number (14040).

2⁶⁸⁶¹⁸ is an apocalyptic number.

68618 is a deficient number, since it is larger than the sum of its proper divisors (43702).

68618 is a wasteful number, since it uses less digits than its factorization.

68618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3132.

The product of its digits is 2304, while the sum is 29.

The square root of 68618 is about 261.9503769801. The cubic root of 68618 is about 40.9398284518.

It can be divided in two parts, 68 and 618, that multiplied together give a palindrome (42024).

The spelling of 68618 in words is "sixty-eight thousand, six hundred eighteen".