68606 has 4 divisors (see below), whose sum is σ = 102912. Its totient is φ = 34302.

The previous prime is 68597. The next prime is 68611. The reversal of 68606 is 60686.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

68606 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 (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17150 + ... + 17153.

It is an arithmetic number, because the mean of its divisors is an integer number (25728).

2⁶⁸⁶⁰⁶ is an apocalyptic number.

68606 is a deficient number, since it is larger than the sum of its proper divisors (34306).

68606 is a wasteful number, since it uses less digits than its factorization.

68606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34305.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 68606 is about 261.9274708770. The cubic root of 68606 is about 40.9374417768.

The spelling of 68606 in words is "sixty-eight thousand, six hundred six".