68681606 has 8 divisors (see below), whose sum is σ = 117739920. Its totient is φ = 29434968.

The previous prime is 68681603. The next prime is 68681629. The reversal of 68681606 is 60618686.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68681603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2452901 + ... + 2452928.

It is an arithmetic number, because the mean of its divisors is an integer number (14717490).

Almost surely, 2^68681606 is an apocalyptic number.

68681606 is a deficient number, since it is larger than the sum of its proper divisors (49058314).

68681606 is a wasteful number, since it uses less digits than its factorization.

68681606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4905838.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 68681606 is about 8287.4366362585. The cubic root of 68681606 is about 409.5247437817.

The spelling of 68681606 in words is "sixty-eight million, six hundred eighty-one thousand, six hundred six".